Production process of concrete composite self-heat-insulation brick building block
[ technical field ] A method for producing a semiconductor device
The invention relates to a production process of a concrete composite self-heat-preservation brick building block meeting the national current fire-proof standard and energy-saving requirements.
[ background of the invention ]
At present, with the implementation and requirements of the state on heat insulation, energy conservation and fire prevention standards of building wall materials, the construction industry has higher requirements on technical indexes of environment protection, waste utilization, heat insulation, heat preservation, fire prevention, water prevention, sound insulation, light volume weight, high strength, low dry shrinkage value, strong hanging force, low production cost, simple construction, the same service life as a building and the like of new wall materials, and consequently, a plurality of new wall materials with different forms appear, but the existing new wall materials can not simultaneously meet the requirements of environment protection, waste utilization, heat insulation, heat preservation, fire prevention, water prevention, sound insulation, light volume weight, high strength, low dry shrinkage value, strong hanging force, low production cost, simple construction, the same service life as the building and the like, have the defects of complex production process, high product cost, low yield, low construction speed and high difficulty, and because the heat preservation materials are mostly made of chemical materials, the heat preservation performance can be reduced along with the increase of service time, the durability is poor, the heat insulation material is different from building blocks and construction materials, or an intermediate material with higher price and a new wall material are required to be adopted for matching construction, so that the direct economic loss of a construction unit is caused, the construction period is long, and the requirements of the existing construction industry cannot be met.
[ summary of the invention ]
In order to solve the problems, the invention provides a production process of a concrete composite self-insulation brick building block, which is environment-friendly, waste-utilizing, heat-insulating, heat-preserving, fireproof, waterproof, sound-insulating, light in volume weight, high in strength, low in drying shrinkage value, strong in hanging force, low in production cost, simple and convenient to construct and has the same service life as a building.
The purpose of the invention is realized as follows:
a production process of a concrete composite self-insulation brick building block is characterized by comprising the following steps:
the method comprises the steps of firstly, manufacturing a concrete composite self-insulation building block blank body, wherein the blank body is provided with at least one cavity, and the main steps of manufacturing the blank body comprise ①, pre-stirring for 1-2 minutes, ③, adding cement, coal or coal, stirring for 1-1.5 minutes, adding water or waste cement slurry, stirring for 2-3 minutes, conveying to a storage hopper of an automatic building block forming machine, and preparing the blank body for later use, and ⑤, conveying to a natural curing site for natural curing for 4-6 hours or adopting an automatic warehousing system for steam curing;
the second step is to manufacture the material of the concrete composite self-insulation building block heat-insulation layer, wherein the main steps of manufacturing the heat-insulation layer comprise ①, mixing water or waste cement slurry, cement, fly ash, small granular materials or fibers and foam according to a certain proportion, ②, and stirring;
step three, injecting the material of the heat-insulating layer of the concrete composite self-heat-insulating building block manufactured in the step two into a cavity of the concrete composite self-heat-insulating building block blank;
step four: and curing the product manufactured in the previous step.
The production process of the concrete composite self-insulation brick building block is characterized in that the concrete composite self-insulation brick building block comprises the following ingredients: water: cement: fly ash: 150-250 (kg) of cement foaming agent (admixture): 100-130 (kg): 40-60 (kg): 5-7 (kg), the weight of the foamed concrete mixture produced by the formula is 300-400 kg/M3。
The production process of the concrete composite self-insulation brick building block is characterized in that the concrete composite self-insulation brick building block comprises the following ingredients: water: cement: fly ash: cement foaming agent (admixture): 180-220 (kg) of fiber (plant fiber, glass fiber or industrial fiber): 100-130 (kg) 33-45 (kg): 6-8 (kg): 2-3 (kg), the weight of the foamed concrete mixture produced by the formula is 250-300 kg/M3。
The production process of the concrete composite self-insulation brick building block is characterized in that the concrete composite self-insulation brick building block comprises the following ingredients: water: cement, fly ash: cement foaming agent (admixture): 200-250 (kg) of small granular objects (polystyrene granules or crushed materials of aerated concrete waste, vitrified micro-beads, perlite, ceramsite and the like): 100-150 (kg): 6-12 (kg): 5-10 (kg), the weight of the foamed concrete mixture produced by the formula is 220-250 kg/M3。
The production process of the concrete composite self-insulation brick building block is characterized in that the concrete composite self-insulation brick building block comprises the following ingredients: water-waste slurry: cement: fly ash: cement foaming agent (admixture): 250-280 (kg) of fibers (plant fibers, glass fibers and industrial fibers): 40-70 (kg): 30-50 (kg): 6-8 (kg): 2-3 (kg), the weight of the foamed concrete mixture produced by the formula is 250-280 kg/M3。
The production process of the concrete composite self-insulation brick building block is characterized in that the concrete composite self-insulation brick building blockThe heat-insulating layer comprises the following ingredients: cement waste slurry: cement: fly ash: cement foaming agent (admixture): 250-300 (kg) of small granular objects (polystyrene granules or crushed materials of aerated concrete waste, vitrified micro-beads, perlite, ceramsite and the like): 45-60 (kg): 6-12 (kg): 5-10 (kg), the weight of the foamed concrete mixture produced by the formula is 240-280 kg/M3。
The production process of the concrete composite self-insulation brick building block is characterized in that in the first step, water or waste cement slurry is added and stirred for 2-3 minutes, then 4% -8% of plant fiber or rice husk is added and stirred together, the soil content of stone powder is not more than 30%, and the water content of construction waste or stone powder is not more than 20% -25%.
The production process of the concrete composite self-insulation brick building block is characterized in that the weight ratio of the cement, the coal and the water in the step one is as follows: cement: coal: water 1: 0.3: 2.3; or the cement waste slurry and the coal are mixed according to the weight ratio: coal 1: 0.15.
the production process of the concrete composite self-insulation brick building block is characterized in that in the second step, the heat insulation layer material is quantitatively injected into the concrete composite self-insulation brick building block body through a vacuum negative pressure pipe or a special negative pressure container; the vacuum negative pressure pipe or the special negative pressure container is driven by hydraulic or mechanical transmission, compressed air change and other modes to suck or press the heat-insulating layer material into the quantitative container, and then the quantitative heat-insulating layer material in the container is injected into the concrete composite self-insulation building block blank by the reverse working principle.
The production process of the concrete composite self-insulation brick building block is characterized in that in the second step, the heat insulation layer material is quantitatively injected into the concrete composite self-insulation brick building block body through a vacuum negative pressure pipe or a special negative pressure container such as a true foaming concrete (extruded rubber pipe) pump or a screw-driven pressure pump mode, a piston pump or a slurry pump and the like; and pumping the heat-insulating layer material into a storage container, and injecting the storage container into the green body by using a perforated connecting pipeline according to the required quantity of the green body to be injected.
The production process of the concrete composite self-insulation brick building block is characterized in that the adding sequence of the materials in the step two is as follows: stirring water or waste cement slurry, cement and fly ash for about 30 seconds, adding small particles or fibers, stirring for 20 seconds, injecting foam with the thickness of 0.2-0.3 mm generated by a cement foaming agent (a mixing agent) into a stirrer by using special foaming equipment, and stirring for 15-20 seconds to generate the concrete composite self-insulation building block heat-insulation layer material.
The production process of the concrete composite self-insulation brick building block is characterized in that the curing method in the third step comprises the following steps: naturally curing for 8-10 hours or warehousing for 8-10 hours by adopting an automatic warehousing system.
The invention has the beneficial effects that:
1. energy conservation, heat preservation and sound insulation: the effects of sound insulation, heat insulation and heat preservation are achieved.
2. The volume weight is light: the dry volume weight of the composite insulating brick is 950-1100 Kg/M3.
3. Waterproofing: the water absorption rate is only 6.6 percent, so that a good waterproof effect is achieved.
4. Fire prevention: the standard of the national current GB/T29060-.
5. The process is simple and the production is convenient: environmental protection, convenient material taking and material taking according to local actual conditions.
6. Environmental protection, convenient material drawing: the concrete composite self-insulation brick building block is mainly produced from stone powder, fly ash, cement, foamed concrete mixture and the like as raw materials, and is produced by locally using materials according to local actual conditions.
7. Saving soil and low carbon: the product does not use clay, and saves national land resources. The production process does not need heating, and the whole process adopts natural curing.
8. Good substantivity and lower dry shrinkage values: the concrete composite self-heat-insulation brick building block adopts building materials basically consistent with the building mortar, so that the product has extremely good material affinity. After the composite insulating brick is compounded by a plurality of materials, the drying shrinkage value (drying shrinkage: 0.042%) of the product can be effectively reduced and the performance of the composite insulating brick can be improved.
9. Product durability: the invention is compounded by cement stone powder and foam concrete, and the performance of the thermal insulation material can not be reduced due to the aging of the material, thereby achieving the purpose of durable product performance and having the same service life as a building.
10. Excellent weight bearing capacity: because the concrete composite self-insulation brick building block has high strength and extremely thick outer and inner brick walls, the concrete composite self-insulation brick building block can bear and hang heavy objects and meet the secondary decoration requirements of buildings.
11. The construction cost is reduced: the invention relates to a concrete composite self-insulation brick building block, which is constructed without using heat-insulation mortar and a waterproof layer and special treatment on the premise of meeting the current energy-saving standard and local mandatory requirements of China, saves construction materials and labor cost of the heat-insulation mortar and the waterproof layer, reduces construction cost and accelerates construction speed.
[ detailed description ] embodiments
The invention fully considers the characteristics of the concrete composite self-insulation brick building block blank body and the composition of various materials, and the drying shrinkage of the building block blank body and the heat insulation layer can be thoroughly solved from the production process. A production process of a concrete composite self-heat-preservation brick building block comprises the following steps:
firstly, producing a concrete composite self-heat-preservation brick building block blank. The blank body is provided with at least one cavity, and the main steps for manufacturing the blank body are as follows:
1. the concrete composite self-heat-insulation building block green body material is prepared by crushing screened construction waste or stone powder according to the required proportion of gradation: coarse material (45-50%): medium material (35-40%): fine materials (20-10%) are prepared by an automatic batching system (1200-800 kg) and are conveyed into a forced stirrer;
2. and pre-stirring for 1-2 minutes to ensure that the material in the stirrer is uniform, and adding (4-8%) of plant fiber or rice husk to stir together with the material in order to increase the heat insulation effect of the heat insulation block blank and reduce the volume weight of the blank, wherein the plant fiber or the rice husk is not more than the weight and 8% of the material. Wherein the soil content of the stone powder is not more than 30 percent, and the water content of the construction waste or the stone powder is not more than 20 to 25 percent.
3. After materials in the stirrer are uniform, cement and coal (scheme a) or coal (scheme b) are respectively added into the stirrer by an automatic system and stirred for 1-1.5 minutes, and then water or waste cement slurry is added and stirred for 2-3 minutes.
The formula a is cement: coal: 1 part of water: 0.3: 2.3 (weight ratio)
And the formula b is as follows: coal 1: 0.15 (weight ratio)
4. And conveying the stirred boiled material to a storage hopper of an automatic concrete composite self-heat-preservation brick building block forming machine for preparing a blank body. And (3) the water content of the stirred boiled material is not more than 30-35%, and then the concrete composite self-heat-insulation building block green body is produced by an automatic building block forming machine.
5. Before the green body is produced and laminated, water-retaining agents are sprayed into holes of a heat-insulating layer injected into the green body by an automatic spraying system, then the required layers are laminated by a laminating machine, the layers are not more than 7, the green body is forked to a natural curing field by a forklift and is naturally cured for 4-6 hours or an automatic warehousing system is adopted for warehousing steam (the steam is at the normal pressure and at the temperature of 80-100 ℃) for curing and natural curing, the injection time of the heat-insulating layer is determined to be 5-8 hours but not more than 10 hours according to the final setting time of cement in the natural curing, the heat-insulating layer is injected into the warehoused green body within 3.5-4.5 hours in the steam curing, and the heat-insulating layer.
The dry volume weight of the concrete composite self-insulation brick block blank produced according to the method is not more than 700-800M3The strength is not less than MU 4.5-5, so that the strength of the concrete composite self-insulation building block is ensured to be 7.5-8.5 MU. The concrete composite self-insulation brick building block blank can be various in shape, but more than one of the concrete composite self-insulation brick building block is preferably high in hollow rate, small in heat bridge area, light in dry volume weight, simple and symmetrical in shape and simple in subsequent process, and the dry volume weight of the blank is not more than 700-800M3Otherwise, the dry volume weight of the produced concrete composite self-insulation brick building block can not be ensured to be 900-950M3And the strength MU is 7.5-8.5.
Secondly, manufacturing and injecting a concrete composite self-heat-preservation brick building block heat preservation layer:
1. the concrete composite self-insulation brick building block heat-insulation layer comprises the following main material formulas:
A. water: cement: fly ash: 150-250 (kg) of cement foaming agent (admixture): 100130(kg): 40-60 (kg): 5-7 (kg), the weight of the foamed concrete mixture produced by the formula is 300-400 kg/M3。
B. Water: cement: fly ash: cement foaming agent (admixture): 180-220 (kg) of fiber (plant fiber, glass fiber or industrial fiber): 100-130 (kg) 33-45 (kg): 6-8 (kg): 2-3 (kg), the weight of the foamed concrete mixture produced by the formula is 250-300 kg/M3。
C. Water: cement, fly ash: cement foaming agent (admixture): 200-250 (kg) of small granular objects (polystyrene granules or crushed materials of aerated concrete waste, vitrified micro-beads, perlite, ceramsite and the like): 100-150 (kg): 6-12 (kg): 5-10 (kg), the weight of the foamed concrete mixture produced by the formula is 220-250 kg/M3。
D. Water-waste slurry: cement: fly ash: cement foaming agent (admixture): 250-280 (kg) of fibers (plant fibers, glass fibers and industrial fibers): 40-70 (kg): 30-50 (kg): 6-8 (kg): 2-3 (kg), the weight of the foamed concrete mixture produced by the formula is 250-280 kg/M3。
E. Cement waste slurry: cement: fly ash: cement foaming agent (admixture): 250-300 (kg) of small granular objects (polystyrene granules or crushed materials of aerated concrete waste, vitrified micro-beads, perlite, ceramsite and the like): 45-60 (kg): 6-12 (kg): 5-10 (kg), the weight of the foamed concrete mixture produced by the formula is 240-280 kg/M3。
2. Stirring the materials of the concrete composite self-insulation brick building block insulation layer: according to one of the formulas, the raw materials are respectively added into a vertical or horizontal stirring system by an automatic metering system for stirring, and according to the sequence principle of material addition: after water or waste cement slurry, cement and fly ash are stirred for about 30 seconds, small particles or fibers are added and stirred for 20 seconds, then a professional foaming device (a professional foamer or a mechanical foaming machine and other devices) is used for injecting 0.2-0.3 mm of foam generated by a cement foaming agent (a mixing agent) into a stirrer, and the mixture is stirred for 15-20 seconds to generate a heat-insulating layer material of the concrete composite self-heat-insulating brick.
3. The stirred material of the heat-insulating layer of the concrete composite self-heat-insulating brick block is conveyed into an automatic injection equipment storage hopper or a temporary storage hopper for later use, and the material of the heat-insulating layer can be accurately and quantitatively injected into the concrete composite self-heat-insulating block blank by the following method.
A. The vacuum negative pressure pipe or the special negative pressure container is driven by hydraulic or mechanical transmission, compressed air change and other modes to suck or press the heat-insulating layer material into the quantitative container, and then the quantitative heat-insulating layer material in the container is injected into the concrete composite self-insulation building block blank by the reverse working principle.
B. And pumping the heat-insulating layer material into a storage container by adopting a special foamed concrete (extruded rubber tube) pump or a screw rod pushing pressure pump mode, a piston pump or a slurry pump and the like, wherein the storage container is filled with the heat-insulating layer material into the green body through a perforated connecting pipeline according to the quantity required by the green body.
And thirdly, injecting the heat-insulating layer material into the cavity of the concrete composite self-heat-insulating brick building block blank by adopting a manual injection mode and a semi-automatic injection mode.
And fourthly, after the concrete composite self-insulation brick building block heat insulation layer is injected.
After the concrete composite self-insulation brick building block heat-insulation layer is injected, a plate stacking machine or a manual work is used for forking the stacked concrete composite self-insulation brick building block for natural curing for 8-10 hours or an automatic warehousing system is used for warehousing steam for 8-10 hours, and then the packaged product is stored in a temporary storage yard to wait for the product to leave the factory.