CN107548949B - Low-alkalinity cementing material for plant-growing concrete and preparation method thereof - Google Patents
Low-alkalinity cementing material for plant-growing concrete and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 239000004567 concrete Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 55
- 239000002699 waste material Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 27
- 239000002893 slag Substances 0.000 claims abstract description 21
- 239000011398 Portland cement Substances 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 17
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 239000002440 industrial waste Substances 0.000 abstract description 5
- 230000012010 growth Effects 0.000 abstract description 4
- 230000036571 hydration Effects 0.000 description 15
- 238000006703 hydration reaction Methods 0.000 description 15
- 239000010440 gypsum Substances 0.000 description 8
- 229910052602 gypsum Inorganic materials 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000007654 immersion Methods 0.000 description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 description 4
- 239000001506 calcium phosphate Substances 0.000 description 4
- 235000011010 calcium phosphates Nutrition 0.000 description 4
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 description 2
- 239000010920 waste tyre Substances 0.000 description 2
- 241001464837 Viridiplantae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
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- 238000006477 desulfuration reaction Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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Abstract
本发明涉及植生混凝土材料领域，具体地说是一种用于植生混凝土的低碱度胶凝材料及其制备方法。各组分组成及质量份数为：超细矿渣粉60～100份；硅酸盐水泥20～30份；改性组分0～20份；废弃砂浆粉5～20份；废弃橡胶颗粒0.05～0.5份；膨胀珍珠岩粉0～1份；减水剂0.1～2份。首先将减水剂、改性组分、废弃砂浆粉和膨胀珍珠岩粉加入硅酸盐水泥中混合均匀，再与废弃橡胶颗粒及超细矿渣粉混合，制成低碱度胶凝材料。本发明可以充分利用工业废弃物，实现废弃物的资源化利用，并有利于胶凝材料的后期性能发挥；由于有效降低体系的pH值，为植物提供良好的生长条件，有利于提高植生透水混凝土的综合性能。
The invention relates to the field of planted concrete materials, in particular to a low alkalinity cementitious material for planted concrete and a preparation method thereof. The composition and mass parts of each component are: 60-100 parts of ultrafine slag powder; 20-30 parts of Portland cement; 0-20 parts of modified components; 5-20 parts of waste mortar powder; 0.05-20 parts of waste rubber particles 0.5 part; 0-1 part of expanded perlite powder; 0.1-2 part of water reducing agent. First, the water reducing agent, modified components, waste mortar powder and expanded perlite powder are added to Portland cement and mixed evenly, and then mixed with waste rubber particles and ultrafine slag powder to make low alkalinity cementitious materials. The invention can make full use of industrial waste, realize the resource utilization of waste, and is conducive to the later performance of the cementitious material; because the pH value of the system is effectively reduced, good growth conditions are provided for plants, and it is beneficial to improve the planted permeable concrete. comprehensive performance.
Description
技术领域technical field
本发明涉及植生混凝土材料领域，具体地说是一种用于植生混凝土的低碱度胶凝材料及其制备方法。The invention relates to the field of planted concrete materials, in particular to a low alkalinity cementitious material for planted concrete and a preparation method thereof.
背景技术Background technique
为了实现绿色植物与混凝土的共存，缓解大量的混凝土建筑给人们带来的负面影响，扩大绿化面积的同时，实现对水土的保护和利用，植生混凝土受到广泛的关注。植被生态混凝土可以保护水土、涵养水源、吸声降噪、美化环境的功能，提高并充分发挥植被生态混凝土在“海绵”城市建设中的作用。In order to realize the coexistence of green plants and concrete, to alleviate the negative impact of a large number of concrete buildings on people, to expand the green area, and to realize the protection and utilization of soil and water, planted concrete has received extensive attention. Vegetation ecological concrete can protect water and soil, conserve water sources, absorb sound and reduce noise, beautify the environment, and improve and give full play to the role of vegetation ecological concrete in the construction of "sponge" cities.
在植生混凝土制备中所用的胶凝材料一般为硅酸盐水泥，或者在硅酸盐水泥中加入掺合料，但在此体系中，由于硅酸盐水泥胶凝材料体系的成分及水化特点，导致此体系固化后水浸泡液的pH值较高，一般大于pH值9.5，甚至pH值大于10。此外，现有植生混凝土胶凝材料体系的组成及水化特点也不利于改善植生混凝土的抗冻性能，严重影响植物的生长，尤其制约植生混凝土在北方地区的推广使用。The cementitious material used in the preparation of planted concrete is generally Portland cement, or admixtures are added to Portland cement, but in this system, due to the composition and hydration characteristics of the Portland cement cementitious material system , resulting in a higher pH value of the water soaking solution after curing of the system, generally greater than pH 9.5, or even greater than pH 10. In addition, the composition and hydration characteristics of the existing planted concrete cementitious material system are not conducive to improving the frost resistance of planted concrete, seriously affecting the growth of plants, especially restricting the popularization and use of planted concrete in northern regions.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种用于植生混凝土的低碱度胶凝材料及其制备方法，充分利用工业废弃物，制备有利于降低植生混凝土碱度的胶凝材料，不但有利于实现工业废弃物资源化，还可以降低植生混凝土的碱度，改善植物生长条件，提高抗冻性能，同时降低成本，推动植生混凝土在城市建设中的应用，尤其是改善城市绿化环境，实现覆盖、绿化、水土保护的一体化功能。The purpose of the present invention is to provide a low-alkalinity cementitious material for planting concrete and a preparation method thereof, making full use of industrial waste, and preparing a cementing material that is conducive to reducing the alkalinity of planting concrete, which is not only conducive to the realization of industrial waste Recycling can also reduce the alkalinity of planted concrete, improve plant growth conditions, improve frost resistance, reduce costs, and promote the application of planted concrete in urban construction, especially to improve urban greening environment, to achieve coverage, greening, water and soil protection integration function.
本发明的技术方案是：The technical scheme of the present invention is:
一种用于植生混凝土的低碱度胶凝材料，各组分组成及质量份数为：A low alkalinity cementitious material for planting concrete, the composition and mass fraction of each component are:
所述的用于植生混凝土的低碱度胶凝材料，超细矿渣粉的比表面积大于650m2/Kg。In the low-alkalinity cementitious material for planting concrete, the specific surface area of the ultrafine slag powder is greater than 650 m 2 /Kg.
所述的用于植生混凝土的低碱度胶凝材料，超细矿渣粉用量与硅酸盐水泥用量比例为3～5：1。In the low alkalinity cementitious material for planting concrete, the ratio of the amount of the ultrafine slag powder to the amount of the Portland cement is 3-5:1.
所述的用于植生混凝土的低碱度胶凝材料，改性组分为石灰、天然石膏、脱硫石膏、磷酸钙中的一种或两种以上，且其比表面积大于500m2/Kg。In the low-alkalinity cementitious material for planting concrete, the modified component is one or more of lime, natural gypsum, desulfurized gypsum, and calcium phosphate, and its specific surface area is greater than 500 m 2 /Kg.
所述的用于植生混凝土的低碱度胶凝材料，废弃砂浆粉为废弃砂浆或废弃混凝土去除粗骨料后的剩余物磨成的细粉，且其比表面积大于500m2/Kg。In the low-alkalinity cementitious material for planting concrete, waste mortar powder is fine powder ground from waste mortar or waste concrete after coarse aggregates are removed, and its specific surface area is greater than 500 m 2 /Kg.
所述的用于植生混凝土的低碱度胶凝材料，废弃橡胶颗粒为车辆的废弃轮胎橡胶颗粒，其粒度为0.1～1.0mm。In the low-alkalinity cementitious material for planting concrete, the waste rubber particles are waste tire rubber particles of vehicles, and the particle size is 0.1-1.0 mm.
所述的用于植生混凝土的低碱度胶凝材料的制备方法，首先将减水剂、改性组分、废弃砂浆粉和膨胀珍珠岩粉加入硅酸盐水泥中混合均匀，再与废弃橡胶颗粒及超细矿渣粉混合，制成低碱度胶凝材料。The preparation method of the low-alkalinity cementitious material for planting concrete, firstly, the water reducing agent, the modified component, the waste mortar powder and the expanded perlite powder are added to the Portland cement and mixed evenly, and then mixed with the waste rubber. Granules and ultra-fine slag powder are mixed to make low alkalinity cementitious materials.
所述的用于植生混凝土的低碱度胶凝材料的制备方法，该低碱度胶凝材料的技术指标如下：初凝时间1.5～3小时，终凝时间4～6小时，28天抗压强度为40～55MPa，固化后浸泡液的pH值为9.0～9.5。The preparation method of the low-alkalinity cementitious material for planting concrete, the technical indicators of the low-alkalinity cementitious material are as follows: the initial setting time is 1.5 to 3 hours, the final setting time is 4 to 6 hours, and the compression resistance is 28 days. The strength is 40-55MPa, and the pH of the soaking solution after curing is 9.0-9.5.
本发明的优点及有益效果是：The advantages and beneficial effects of the present invention are:
1、本发明用于植生混凝土的低碱度胶凝材料及其制备方法，胶凝材料的28天抗压强度达到40～55MPa，显著改善植生混凝土的抗冻性能。因此，本发明可以显著提高植生混凝土抗压强度以及改善抗冻性能的特点，尤其适合于北方城市建设中的使用。1. The low alkalinity cementitious material for planting concrete and the preparation method thereof of the present invention, the 28-day compressive strength of the cementitious material reaches 40-55MPa, which significantly improves the frost resistance of planting concrete. Therefore, the present invention can significantly improve the compressive strength of the planted concrete and the characteristics of improving the frost resistance, and is especially suitable for use in the construction of northern cities.
2、本发明用于植生混凝土的低碱度胶凝材料及其制备方法，可使植生混凝土浸泡水溶液的pH值降低到9.0～9.5，改善植物的生长环境，有利于植物的发芽、生长、延长植物生命周期。本发明的另外一个重要特点是，材料的成本低，制备工艺简单，可广泛应用于实际工程。2. The low alkalinity cementitious material for planting concrete and the preparation method thereof of the present invention can reduce the pH value of the planting concrete soaking aqueous solution to 9.0-9.5, improve the growth environment of plants, and facilitate the germination, growth and prolongation of plants. Plant life cycle. Another important feature of the present invention is that the cost of materials is low, the preparation process is simple, and it can be widely used in practical engineering.
3、本发明用于植生混凝土的低碱度胶凝材料及其制备方法，充分利用工业废弃物，有助于实现工业废弃物的资源化利用，可以降低植生混凝土中胶凝材料的成本，并有利于胶凝材料的后期性能发挥。3. The low alkalinity cementitious material for planting concrete and the preparation method thereof of the present invention make full use of industrial waste, help to realize the resource utilization of industrial waste, can reduce the cost of cementing material in planting concrete, and reduce the cost of cementitious materials in planted concrete. It is beneficial to the later performance of the cementitious material.
4、本发明由于效降低体系的pH值，为植物提供良好的生长条件，有利于提高植生透水混凝土的综合性能。4. Since the present invention effectively reduces the pH value of the system, it provides good growth conditions for plants, and is beneficial to improve the comprehensive performance of the planted permeable concrete.
附图说明Description of drawings
图1为实施例1中水化28天的SEM照片。FIG. 1 is a SEM photograph of Example 1 after hydration for 28 days.
图2为实施例5中水化28天的SEM照片。FIG. 2 is a SEM photograph of Example 5 after hydration for 28 days.
图3为实施例6中水化28天的SEM照片。FIG. 3 is a SEM photograph of Example 6 after hydration for 28 days.
具体实施方式Detailed ways
在具体实施过程中，本发明用于植生混凝土的低碱度胶凝材料及其制备方法，各组分组成及质量份数为：In the specific implementation process, the present invention is used for the low alkalinity cementitious material of planting concrete and its preparation method, and each component composition and mass fraction are:
其中，超细矿渣粉的比表面积大于650m2/Kg，优选比表面积大于700m2/Kg，其用量与硅酸盐水泥用量比例为3～5：1，优选3～4：1，最优3.5：1；超细矿渣粉优选的质量份数为70～100份，硅酸盐水泥优选的质量份数为25～30份。改性组分为石灰、天然石膏、脱硫石膏、磷酸钙中的一种或两种以上，且其比表面积大于500m2/Kg，优选比表面积大于550m2/Kg，其优选的质量份数5～15份；废弃砂浆粉为废弃砂浆或废弃混凝土去除粗骨料后的剩余物磨成的细粉，且其比表面积大于500m2/Kg，优选比表面积大于550m2/Kg，其优选的质量份数为10～20份。废弃橡胶颗粒为车辆的废弃轮胎橡胶颗粒，其粒度为0.1～1.0mm，优选0.1～0.5mm。膨胀珍珠岩粉的粒度为150～250目，其优选的质量份数为0.1～0.5份。减水剂为聚羧酸减水剂(粉剂)、萘系减水剂(粉剂)、氨基磺酸盐减水剂(粉剂)中一种，其优选的质量份数为0.15～1.0份。Among them, the specific surface area of the ultrafine slag powder is greater than 650m 2 /Kg, preferably the specific surface area is greater than 700m 2 /Kg, and the ratio of its dosage to the Portland cement dosage is 3-5:1, preferably 3-4:1, and optimally 3.5 : 1; the preferred mass fraction of ultrafine slag powder is 70-100 parts, and the preferred mass fraction of Portland cement is 25-30 parts. The modified component is one or more of lime, natural gypsum, desulfurized gypsum and calcium phosphate, and its specific surface area is greater than 500m 2 /Kg, preferably the specific surface area is greater than 550m 2 /Kg, and its preferred mass fraction is 5 ~15 parts; waste mortar powder is the fine powder ground from waste mortar or waste concrete after the coarse aggregate is removed, and its specific surface area is greater than 500m 2 /Kg, preferably the specific surface area is greater than 550m 2 /Kg, and its preferred mass The number of copies is 10 to 20 copies. The waste rubber particles are waste tire rubber particles of vehicles, and the particle size is 0.1-1.0 mm, preferably 0.1-0.5 mm. The particle size of the expanded perlite powder is 150-250 mesh, and its preferred mass fraction is 0.1-0.5 part. The water-reducing agent is one of polycarboxylate water-reducing agent (powder), naphthalene-based water-reducing agent (powder), and sulfamate water-reducing agent (powder), and its preferred mass fraction is 0.15-1.0 part.
本发明中，各组成部分的作用和协同作用如下：In the present invention, the effect and synergy of each component are as follows:
(1)超细矿渣粉：具有高的比表面积，在水泥水化产物及改性祖坟的作用下，可以发挥出很好的胶凝性能，保证植生混凝土的强度，能够改善植生混凝土的抗冻性能等耐久性，同时可以降低混凝土的碱度。(1) Ultrafine slag powder: with high specific surface area, under the action of cement hydration products and modified ancestral graves, it can exert good cementitious properties, ensure the strength of planted concrete, and improve the frost resistance of planted concrete. Performance and other durability, while reducing the alkalinity of concrete.
(2)硅酸盐水泥：作为辅助胶凝材料，可以实现胶凝作用，此外，更为重要的是硅酸盐水泥水化的产物，可以有效促进超细矿渣粉的水化，激发其水化胶凝性能，有力发挥超细矿渣粉对强度的贡献。(2) Portland cement: As an auxiliary cementing material, it can achieve gelation. In addition, it is more important that the hydration product of Portland cement can effectively promote the hydration of ultrafine slag powder and stimulate its water content. It can improve the gelation performance and exert the contribution of ultra-fine slag powder to the strength.
(3)改性组分：可以改善超细矿渣粉的水化特性，调节胶凝材料的水化进程有利于胶凝材料石状结构的形成。(3) Modified component: It can improve the hydration characteristics of ultrafine slag powder, and adjust the hydration process of the cementitious material, which is beneficial to the formation of the stone-like structure of the cementitious material.
(4)废弃砂浆粉：调节超细矿渣粉的水化性能，改善硬化结构，降低体系的pH值，有利于以超细矿渣粉为主的低碱度胶凝材料制备的植生混凝土的强度和耐久性能。(4) Waste mortar powder: adjust the hydration performance of ultrafine slag powder, improve the hardened structure, and reduce the pH value of the system, which is conducive to the strength and Durability.
(5)废弃橡胶颗粒：调整低碱度胶凝材料所形成的硬化结构，改善抗冻性能，有利于降低体系的pH值，并有利于植生混凝土的透水性能。(5) Waste rubber particles: Adjust the hardened structure formed by the low alkalinity cementitious material to improve the frost resistance, which is beneficial to reduce the pH value of the system, and is beneficial to the water permeability of the planted concrete.
(6)膨胀珍珠岩粉：改善低碱度胶凝材料体系的水化性能以及硬化水泥石结构，促进颗粒之间实现紧密堆积，同时有助于降低体系的pH值、吸收水分，降低水分流失速度，改善植物生长条件。(6) Expanded perlite powder: Improve the hydration performance of low alkalinity cementitious material system and harden cement stone structure, promote close packing between particles, and at the same time help to reduce the pH value of the system, absorb water, and reduce water loss speed and improve plant growth conditions.
(7)减水剂：降低胶凝材料所需水量，有利于强度和耐久性能的改善。(7) Water reducing agent: reducing the amount of water required for the cementitious material is beneficial to the improvement of strength and durability.
上述用于植生混凝土的低碱度胶凝材料的制备方法，首先将减水剂、改性组分、废弃砂浆粉和膨胀珍珠岩粉加入硅酸盐水泥中混合均匀，再与废弃橡胶颗粒及超细矿渣粉混合，制成低碱度胶凝材料。The above-mentioned preparation method of the low-alkalinity cementitious material for planting concrete, firstly, the water reducing agent, the modified component, the waste mortar powder and the expanded perlite powder are added to the Portland cement and mixed evenly, and then mixed with the waste rubber particles and the waste rubber particles. Ultrafine slag powder is mixed to make low alkalinity cementitious material.
为了更好理解本发明，下面结合实施例对本发明进一步阐述，但本发明保护内容不仅仅局限于所述实施例。In order to better understand the present invention, the present invention is further described below with reference to the embodiments, but the protection content of the present invention is not limited to the embodiments.
实施例1：Example 1:
本实施例中，用于植生混凝土的低碱度胶凝材料及其制备方法如下：In the present embodiment, the low alkalinity cementitious material for planting concrete and its preparation method are as follows:
按质量份数计，首先将0.2份氨基磺酸盐减水剂(粉剂)、15份脱硫石膏粉、比表面积为520m2/Kg的10份废弃砂浆粉和150目的膨胀珍珠岩粉0.1份加入到25份硅酸盐水泥(PO42.5)中充分混合，再与粒度为0.4mm的0.5份废弃橡胶颗粒及比表面积为650m2/Kg的80份超细矿渣粉混合均匀，制成胶凝材料。In parts by mass, firstly add 0.2 part of sulfamate water reducing agent (powder), 15 parts of desulfurized gypsum powder, 10 parts of waste mortar powder with a specific surface area of 520 m 2 /Kg and 0.1 part of 150 mesh expanded perlite powder Mix well into 25 parts of Portland cement (PO42.5), and then mix with 0.5 parts of waste rubber particles with a particle size of 0.4 mm and 80 parts of ultra-fine slag powder with a specific surface area of 650 m 2 /Kg to make a gel Material.
本实施例的技术指标如下：初凝时间2.5小时，终凝时间6小时，胶凝材料的28天抗压强度为40.8MPa，固化后水浸泡液的pH值为9.45。The technical indicators of this embodiment are as follows: the initial setting time is 2.5 hours, the final setting time is 6 hours, the 28-day compressive strength of the cementitious material is 40.8 MPa, and the pH value of the water immersion solution after curing is 9.45.
如图1所示，本实施例水化28天的SEM照片，可以看出硬化结构致密。As shown in Fig. 1, the SEM photograph of this example after 28 days of hydration shows that the hardened structure is dense.
实施例2：Example 2:
本实施例中，用于植生混凝土的低碱度胶凝材料及其制备方法如下：In the present embodiment, the low alkalinity cementitious material for planting concrete and its preparation method are as follows:
按质量份数计，首先将0.5份聚羧酸系减水剂(粉剂)、15份磷酸钙粉、比表面积为550m2/Kg的12份废弃砂浆粉和200目的膨胀珍珠岩粉0.4份加入到20份硅酸盐水泥(PO42.5)中充分混合，再与粒度为0.2mm的0.05份废弃橡胶颗粒及比表面积为650m2/Kg的90份超细矿渣粉混合均匀，制成胶凝材料。In parts by mass, firstly add 0.5 part of polycarboxylate based water reducing agent (powder), 15 parts of calcium phosphate powder, 12 parts of waste mortar powder with a specific surface area of 550m 2 /Kg and 0.4 part of 200 mesh expanded perlite powder Mix well into 20 parts of Portland cement (PO42.5), and then mix with 0.05 parts of waste rubber particles with a particle size of 0.2 mm and 90 parts of ultrafine slag powder with a specific surface area of 650 m 2 /Kg to make a gel Material.
本实施例的技术指标如下：初凝时间2.2小时，终凝时间5.5小时，胶凝材料的28天抗压强度为51.5MPa，固化后水浸泡液的pH值为9.31。The technical indicators of this embodiment are as follows: the initial setting time is 2.2 hours, the final setting time is 5.5 hours, the 28-day compressive strength of the cementitious material is 51.5 MPa, and the pH value of the water soaking solution after curing is 9.31.
实施例3：Example 3:
本实施例中，用于植生混凝土的低碱度胶凝材料及其制备方法如下：In the present embodiment, the low alkalinity cementitious material for planting concrete and its preparation method are as follows:
按质量份数计，首先将2.0份聚羧酸系减水剂(粉剂)、5份石灰粉、比表面积为580m2/Kg的20份废弃砂浆粉和250目的膨胀珍珠岩粉0.2份加入到30份硅酸盐水泥(PO42.5)中充分混合，再与粒度为0.5mm的0.2份废弃橡胶颗粒及比表面积为700m2/Kg的95份超细矿渣粉混合均匀，制成胶凝材料。In parts by mass, firstly, 2.0 parts of polycarboxylic acid-based water-reducing agent (powder), 5 parts of lime powder, 20 parts of waste mortar powder with a specific surface area of 580 m 2 /Kg and 0.2 part of 250 mesh expanded perlite powder were added to the Mix well with 30 parts of Portland cement (PO42.5), and then mix with 0.2 parts of waste rubber particles with a particle size of 0.5 mm and 95 parts of ultrafine slag powder with a specific surface area of 700 m 2 /Kg to make a cementitious material .
本实施例的技术指标如下：初凝时间1.8小时，终凝时间4.5小时，胶凝材料的28天抗压强度为55.5MPa，固化后水浸泡液的pH值为9.15。The technical indicators of this example are as follows: the initial setting time is 1.8 hours, the final setting time is 4.5 hours, the 28-day compressive strength of the cementitious material is 55.5 MPa, and the pH value of the water immersion solution after curing is 9.15.
实施例4：Example 4:
本实施例中，用于植生混凝土的低碱度胶凝材料及其制备方法如下：In the present embodiment, the low alkalinity cementitious material for planting concrete and its preparation method are as follows:
按质量份数计，首先将0.5份萘系减水剂(粉剂)、10份脱硫石膏粉、比表面积为550m2/Kg的5份废弃砂浆粉和180目的膨胀珍珠岩粉0.8份加入到22份硅酸盐水泥(PO42.5)中充分混合，再与粒度为1.0mm的0.25份废弃橡胶颗粒及比表面积为650m2/Kg的65份超细矿渣粉混合均匀，制成胶凝材料。In parts by mass, first add 0.5 part of naphthalene-based water reducing agent (powder), 10 parts of desulfurized gypsum powder, 5 parts of waste mortar powder with a specific surface area of 550 m 2 /Kg and 0.8 part of 180 mesh expanded perlite powder to 22 Portland cement (PO42.5) is fully mixed, and then mixed with 0.25 parts of waste rubber particles with a particle size of 1.0mm and 65 parts of ultrafine slag powder with a specific surface area of 650m 2 /Kg to make a cementitious material.
本实施例的技术指标如下：初凝时间3小时，终凝时间6小时，胶凝材料的28天抗压强度为42.5MPa，固化后水浸泡液的pH值为9.44。The technical indicators of this embodiment are as follows: the initial setting time is 3 hours, the final setting time is 6 hours, the 28-day compressive strength of the cementitious material is 42.5 MPa, and the pH value of the water immersion solution after curing is 9.44.
实施例5：Example 5:
本实施例中，用于植生混凝土的低碱度胶凝材料及其制备方法如下：In the present embodiment, the low alkalinity cementitious material for planting concrete and its preparation method are as follows:
按质量份数计，首先将1.0份聚羧酸系减水剂(粉剂)、8份天然石膏粉、2份磷酸钙、比表面积为550m2/Kg的10份废弃砂浆粉和200目的膨胀珍珠岩粉0.1份加入到25份硅酸盐水泥(PO42.5)中充分混合，再与粒度为0.5mm的0.1份废弃橡胶颗粒及比表面积为700m2/Kg的72份超细矿渣粉混合均匀，制成胶凝材料。In parts by mass, 1.0 parts of polycarboxylic acid-based water reducing agent (powder), 8 parts of natural gypsum powder, 2 parts of calcium phosphate, 10 parts of waste mortar powder with a specific surface area of 550 m 2 /Kg and 200 mesh of expanded pearls were mixed 0.1 part of rock powder was added to 25 parts of Portland cement (PO42.5) and mixed well, and then mixed with 0.1 part of waste rubber particles with a particle size of 0.5mm and 72 parts of ultrafine slag powder with a specific surface area of 700m 2 /Kg. , made into a cementitious material.
本实施例的技术指标如下：初凝时间2小时，终凝时间5小时，胶凝材料的28天抗压强度为49MPa，固化后水浸泡液的pH值为9.23。The technical indicators of this embodiment are as follows: the initial setting time is 2 hours, the final setting time is 5 hours, the 28-day compressive strength of the cementitious material is 49 MPa, and the pH value of the water immersion solution after curing is 9.23.
如图2所示，本实施例水化28天的SEM照片，可以看出硬化结构致密。As shown in FIG. 2 , the SEM photo of this example after hydration for 28 days shows that the hardened structure is dense.
实施例6：Example 6:
本实施例中，用于植生混凝土的低碱度胶凝材料及其制备方法如下：In the present embodiment, the low alkalinity cementitious material for planting concrete and its preparation method are as follows:
按质量份数计，首先将1.3份聚羧酸系减水剂(粉剂)、2份石灰、8份脱硫石膏、比表面积为580m2/Kg的6份废弃砂浆粉和220目的膨胀珍珠岩粉0.5份加入到28份硅酸盐水泥(PO42.5)中充分混合，再与粒度为0.8mm的0.05份废弃橡胶颗粒及比表面积为750m2/Kg的100份超细矿渣粉混合均匀，制成胶凝材料。In parts by mass, 1.3 parts of polycarboxylic acid-based water reducing agent (powder), 2 parts of lime, 8 parts of desulfurization gypsum, 6 parts of waste mortar powder with a specific surface area of 580 m 2 /Kg and 220 mesh of expanded perlite powder were mixed 0.5 part was added to 28 parts of Portland cement (PO42.5) and mixed well, and then mixed with 0.05 parts of waste rubber particles with a particle size of 0.8 mm and 100 parts of ultrafine slag powder with a specific surface area of 750 m 2 /Kg. gelling material.
本实施例的技术指标如下：初凝时间1.5小时，终凝时间4小时，胶凝材料的28天抗压强度为55MPa，固化后水浸泡液的pH值为9.19。The technical indicators of this embodiment are as follows: the initial setting time is 1.5 hours, the final setting time is 4 hours, the 28-day compressive strength of the cementitious material is 55 MPa, and the pH value of the water immersion solution after curing is 9.19.
如图3所示，本实施例水化28天的SEM照片，可以看出晶体尺寸均匀，排列规则。As shown in FIG. 3 , the SEM photograph of the 28-day hydration in this example shows that the crystals are uniform in size and regularly arranged.
实施例结果表明，本发明种用于植生混凝土的低碱度胶凝材料可以降低胶凝体系的pH值，并具有较好的28天抗压强度，改善结构的致密性。The results of the examples show that the low alkalinity cementitious material for planting concrete of the present invention can reduce the pH value of the cementation system, has better 28-day compressive strength, and improves the compactness of the structure.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466975A (en) * | 2013-08-11 | 2013-12-25 | 济南大学 | Low-alkalinity gelling material suitable for planting concrete |
| CN103553505A (en) * | 2013-11-25 | 2014-02-05 | 济南大学 | Fertilizer slow-release type portland cement based gel material |
| CN106007596A (en) * | 2016-05-30 | 2016-10-12 | 济南大学 | Fertilizer effect slow-release type cement-based gelling material, and preparation method thereof |
| CN106242446A (en) * | 2016-08-15 | 2016-12-21 | 马鞍山十七冶工程科技有限责任公司 | A kind of low alkalinity gel material and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466975A (en) * | 2013-08-11 | 2013-12-25 | 济南大学 | Low-alkalinity gelling material suitable for planting concrete |
| CN103553505A (en) * | 2013-11-25 | 2014-02-05 | 济南大学 | Fertilizer slow-release type portland cement based gel material |
| CN106007596A (en) * | 2016-05-30 | 2016-10-12 | 济南大学 | Fertilizer effect slow-release type cement-based gelling material, and preparation method thereof |
| CN106242446A (en) * | 2016-08-15 | 2016-12-21 | 马鞍山十七冶工程科技有限责任公司 | A kind of low alkalinity gel material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《低碱度水泥基凝胶材料研究现状》;梁慷等;《科技创新与应用》;20140918(第26期);第252页 * |
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