CN105819756B - High titanium slag self-compacting concrete compound method - Google Patents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
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Abstract
本发明公开了一种高钛渣自密实混凝土配制方法，涉及高钛渣再利用领域，提供一种高钛渣作为配料的自密实混凝土的配制方法。本方法包括如下步骤：A、准备混凝土配料，混凝土配料包括高钛渣细砂、高钛渣碎石、水泥、粉煤灰、外加剂和水；B、确定各配料的用量；其中高钛渣碎石用量根据混凝土自密实性能等级确定；水用量根据公式Vw＝VW1+VW2‑VW3确定；水泥和粉煤灰用量根据水的质量与水泥和粉煤灰总质量的比以及粉煤灰的掺量为25％‑35％确定；外加剂的用量根据外加剂用水泥的相容性试验确定；高钛渣细砂用量根据普通高钛渣混凝土配制的经验确定混凝土的容重，用总容重减去高钛渣碎石、水泥、粉煤灰、外加剂和水的重量得出。本发明可应用于混凝土生产中。The invention discloses a preparation method of high-titanium slag self-compacting concrete, relates to the field of high-titanium slag reuse, and provides a preparation method of high-titanium slag as a batching self-compacting concrete. The method comprises the following steps: A. preparing concrete batching, which includes high-titanium slag fine sand, high-titanium slag gravel, cement, fly ash, admixture and water; B. determining the dosage of each batching; wherein the high-titanium slag The amount of crushed stone is determined according to the self-compacting performance grade of concrete; the amount of water is determined according to the formula V w = V W1 + V W2 ‑V W3 ; the amount of cement and fly ash is determined according to the ratio of the quality of water to the total mass of cement and fly ash and the amount of powder The amount of fly ash is determined as 25%-35%; the amount of admixture is determined according to the compatibility test of the cement used for the admixture; the amount of high-titanium slag fine sand is determined according to the experience of ordinary high-titanium slag concrete preparation. The total bulk density is obtained by subtracting the weight of high titanium slag crushed stone, cement, fly ash, admixture and water. The invention can be applied in concrete production.
Description
技术领域technical field
本发明涉及高钛渣再利用领域，尤其涉及一种利用高钛渣配制自密实混凝土的方法。The invention relates to the field of high titanium slag reuse, in particular to a method for preparing self-compacting concrete by using high titanium slag.
背景技术Background technique
目前，关于自密实混凝土的配合比设计，国内外尚未有统一的方法，国内外学者提出的配合比设计方法主要有：固定砂石体积法、全计算法，改进全计算法，参数设计法，骨料比表面积法，简易配合比设计方法等。自密实混凝土配合比计算法方法都不尽相同，都有各自的特点和针对点，设计自密实混凝土配合比不能模板化。随着大量使用新型工业固态废弃物材料和高效减水剂的发展，配合比的计算方法有待提高。At present, there is no unified method for the mix ratio design of self-compacting concrete at home and abroad. The mix ratio design methods proposed by domestic and foreign scholars mainly include: fixed sand and gravel volume method, full calculation method, improved full calculation method, parameter design method, Aggregate specific surface area method, simple mix ratio design method, etc. The calculation methods of self-compacting concrete mix ratio are not the same, each has its own characteristics and targets, and the design of self-compacting concrete mix ratio cannot be templated. With the development of extensive use of new industrial solid waste materials and high-efficiency water reducers, the calculation method of the mix ratio needs to be improved.
攀枝花地区拥有大量的高钛渣砂石，目前并没有很好的利用方法。现有自密实混凝土配料通常包括卵石、碎石、中细砂和粉煤灰等，通常没有将高钛渣砂石作为混凝土配料，也就没有针对高钛渣自密实混凝土的配合比设计方法。There is a large amount of high-titanium slag sand and gravel in Panzhihua area, and there is no good use method at present. The existing self-compacting concrete ingredients usually include pebbles, crushed stones, medium-fine sand and fly ash, etc. Usually, high-titanium slag sandstone is not used as concrete ingredients, and there is no mix ratio design method for high-titanium slag self-compacting concrete.
发明内容Contents of the invention
本发明要解决的技术问题是：提供一种高钛渣作为配料的自密实混凝土的配制方法。The technical problem to be solved by the present invention is to provide a preparation method of self-compacting concrete with high titanium slag as ingredients.
为解决上述问题采用的技术方案是：高钛渣自密实混凝土配制方法包括如下步骤：The technical solution adopted for solving the above problems is: the preparation method of high titanium slag self-compacting concrete comprises the following steps:
A、准备混凝土配料，混凝土配料包括高钛渣细砂、高钛渣碎石、水泥、粉煤灰、外加剂和水；高钛渣碎石最大粒径为16mm，表观密度为2730kg/m3，堆积密度为1390kg/m3；高钛渣细砂细度模数为2.8，表观密度为3130kg/m3，堆积密度为1770kg/m3；A. Prepare concrete ingredients. Concrete ingredients include high-titanium slag fine sand, high-titanium slag gravel, cement, fly ash, admixtures and water; the maximum particle size of high-titanium slag gravel is 16mm, and the apparent density is 2730kg/m 3. The bulk density is 1390kg/m 3 ; the fineness modulus of high titanium slag fine sand is 2.8, the apparent density is 3130kg/m 3 , and the bulk density is 1770kg/m 3 ;
B、确定各配料的用量；B. Determine the dosage of each ingredient;
每立方米混凝土高钛渣碎石用量根据混凝土自密实性能等级确定，具体方法如下表：The amount of high-titanium slag and crushed stone per cubic meter of concrete is determined according to the self-compacting performance level of the concrete. The specific method is as follows:
每立方米混凝土水用量根据公式Vw＝VW1+VW2-VW3确定，Vw为每立方米混凝土水用量，VW1取值范围为155-180Kg，VW2为高钛渣碎石饱和吸水量，VW3为预湿含水量；The amount of concrete water per cubic meter is determined according to the formula Vw=V W1 +V W2 -V W3 , Vw is the amount of concrete water per cubic meter, the range of V W1 is 155-180Kg, and V W2 is the saturated water absorption of high titanium slag gravel , V W3 is the pre-wet water content;
每立方米混凝土水泥和粉煤灰用量确定方法如下：首先根据公式fcμ,p＝fcμ,0+1.645δ确定混凝土的配制强度，fcμ,p为混凝土的配制强度；fcμ,0是混凝土设计强度，δ是混凝土强度标准差；然后根据公式确定水的质量与水泥和粉煤灰总质量的比，为水的质量与水泥和粉煤灰总质量的比，fce为水泥的实际强度，A，B为经验系数；再根据粉煤灰的掺量为25％-35％确定水泥的质量和粉煤灰的质量；The method for determining the amount of cement and fly ash per cubic meter of concrete is as follows: First, determine the preparation strength of concrete according to the formula f cμ,p = f cμ,0 +1.645δ, where f cμ,p is the preparation strength of concrete; f cμ,0 is Concrete design strength, δ is the standard deviation of concrete strength; then according to the formula Determine the ratio of the mass of water to the total mass of cement and fly ash, is the ratio of the mass of water to the total mass of cement and fly ash, f ce is the actual strength of cement, A and B are empirical coefficients; then determine the quality of cement and powder the mass of coal ash;
每立方米混凝土外加剂的用量根据外加剂用水泥的相容性试验确定；The amount of concrete admixture per cubic meter is determined according to the compatibility test of cement used for admixture;
每立方米混凝土高钛渣细砂用量确定方法如下：根据普通高钛渣混凝土配制的经验确定混凝土的容重，用总容重减去高钛渣碎石、水泥、粉煤灰、外加剂和水的重量得出高钛渣细砂用量，最后根据表观的密度的填充原理进行验证。The method for determining the amount of high titanium slag fine sand per cubic meter of concrete is as follows: determine the concrete bulk density according to the experience of ordinary high titanium slag concrete preparation, and subtract the high titanium slag crushed stone, cement, fly ash, admixture and water from the total bulk density The amount of high titanium slag and fine sand is obtained by weight, and finally verified according to the filling principle of apparent density.
本发明的有益效果是：(1)混凝土作为一种区域性建材，利用高钛渣制备 抗冻混凝土可大幅降低成本；(2)拓宽高钛渣的使用领域，将这种工业废料变为具有较高利用价值的优质建材；(3)提出一种高钛渣自密实混凝土配合比设计方法，解决现有高钛渣渣吸水率高并且空隙率大在计算用水量和砂率的难题，解决高钛渣自密实混凝土配合比设计方法的难题；为利用高钛渣制备自密实混凝土提供技术支撑。The beneficial effects of the present invention are: (1) concrete is used as a regional building material, and the cost can be greatly reduced by using high-titanium slag to prepare frost-resistant concrete; High-quality building materials with high utilization value; (3) Propose a design method of high-titanium slag self-compacting concrete mix ratio to solve the existing high-titanium slag high water absorption rate and large void ratio in the calculation of water consumption and sand ratio. Difficulties in the design method of high-titanium slag self-compacting concrete mix ratio; provide technical support for the preparation of self-compacting concrete using high-titanium slag.
具体实施方式detailed description
下面结合具体实施方式对本发明进一步说明。The present invention will be further described below in combination with specific embodiments.
高钛渣自密实混凝土配制方法包括如下步骤：The preparation method of high titanium slag self-compacting concrete comprises the following steps:
A、准备混凝土配料，混凝土配料包括高钛渣细砂、高钛渣碎石、水泥、粉煤灰、外加剂和水；高钛渣碎石最大粒径为16mm，表观密度为2730kg/m3，堆积密度为1390kg/m3；高钛渣细砂细度模数为2.8，表观密度为3130kg/m3，堆积密度为1770kg/m3；A. Prepare concrete ingredients. Concrete ingredients include high-titanium slag fine sand, high-titanium slag gravel, cement, fly ash, admixtures and water; the maximum particle size of high-titanium slag gravel is 16mm, and the apparent density is 2730kg/m 3. The bulk density is 1390kg/m 3 ; the fineness modulus of high titanium slag fine sand is 2.8, the apparent density is 3130kg/m 3 , and the bulk density is 1770kg/m 3 ;
B、确定各配料的用量；B. Determine the dosage of each ingredient;
每立方米混凝土高钛渣碎石用量根据混凝土自密实性能等级确定，具体方法如下表：The amount of high-titanium slag and crushed stone per cubic meter of concrete is determined according to the self-compacting performance level of the concrete. The specific method is as follows:
每立方米混凝土水用量根据公式Vw＝VW1+VW2-VW3确定，Vw为每立方米混凝土水用量，VW1取值范围为155-180Kg，VW2为高钛渣碎石饱和吸水量，VW3为预湿含水量；The amount of concrete water per cubic meter is determined according to the formula Vw=V W1 +V W2 -V W3 , Vw is the amount of concrete water per cubic meter, the range of V W1 is 155-180Kg, and V W2 is the saturated water absorption of high titanium slag gravel , V W3 is the pre-wet water content;
每立方米混凝土水泥和粉煤灰用量确定方法如下：首先根据公式 fcμ,p＝fcμ,0+1.645δ确定混凝土的配制强度，fcμ,p为混凝土的配制强度；fcμ,0是混凝土设计强度，δ是混凝土强度标准差；然后根据公式确定水的质量与水泥和粉煤灰总质量的比，为水的质量与水泥和粉煤灰总质量的比，fce为水泥的实际强度，A，B为经验系数；再根据粉煤灰的掺量为25％-35％确定水泥的质量和粉煤灰的质量；The method for determining the amount of cement and fly ash per cubic meter of concrete is as follows: First, determine the preparation strength of concrete according to the formula f cμ,p = f cμ,0 +1.645δ, where f cμ,p is the preparation strength of concrete; f cμ,0 is Concrete design strength, δ is the standard deviation of concrete strength; then according to the formula Determine the ratio of the mass of water to the total mass of cement and fly ash, is the ratio of the mass of water to the total mass of cement and fly ash, f ce is the actual strength of cement, A and B are empirical coefficients; then determine the quality of cement and powder the mass of coal ash;
每立方米混凝土外加剂的用量根据外加剂用水泥的相容性试验确定；该试验为现有技术。The amount of the concrete admixture per cubic meter is determined according to the compatibility test of the cement used for the admixture; this test is a prior art.
每立方米混凝土高钛渣细砂用量确定方法如下：根据普通高钛渣混凝土配制的经验确定混凝土的容重，用总容重减去高钛渣碎石、水泥、粉煤灰、外加剂和水的重量得出高钛渣细砂用量，最后根据表观的密度的填充原理进行验证。The method for determining the amount of high titanium slag fine sand per cubic meter of concrete is as follows: determine the concrete bulk density according to the experience of ordinary high titanium slag concrete preparation, and subtract the high titanium slag crushed stone, cement, fly ash, admixture and water from the total bulk density The amount of high titanium slag and fine sand is obtained by weight, and finally verified according to the filling principle of apparent density.
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| CN100534743C (en) * | 2007-06-10 | 2009-09-02 | 王昱海 | Confecting method of modern concrete and the mixing proportion thereof |
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