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Anonymous users2024-02-07Cement, lime and fly ash are added to make a slurry made of water in proportion, put it in an iron frame, and then add aluminum powder to foam.
Store it in the open air for 7 days, and what is left after removing the iron frame is foam concrete.
In addition to the raw materials, no equipment is required. If you want to produce more output, you can use several motors to increase efficiency.
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Anonymous users2024-02-06Cast-in-place foam concrete: The aqueous solution of foaming agent is prepared into concrete made of foam.
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Anonymous users2024-02-05The production process of foam concrete includes: foam preparation, foam concrete mixture preparation, pouring molding, curing, and inspection.
Grass-roots cleaning, according to the drawing design and technical disclosure requirements to determine the thickness and high and low points, watering and wetting, production of foam concrete, pouring and forming according to the construction sequence, maintenance, inspection and finished product maintenance.
Features: 1. High heat resistance. Because foam concrete is a cement inorganic material, the heat resistance can reach more than 500 meters, and there is no thermal decomposition, so the service life is longer and will not cause insulation failure.
2. Green and environmentally friendly, non-toxic and harmless. Foam concrete does not contain any toxic ingredients, and foaming agents and various admixtures have no volatile harmful substances, which is conducive to the indoor environment.
3. The strength is better than that of polystyrene foam. The compressive strength of polystyrene foam is only, while the compressive strength of 200 300 m3 foam concrete is MPa, which is better compressive resistance.
4. Lower cost of use. The total cost of 200 300 m3 foam concrete is only about 100 yuan, which has obvious economic advantages.
5. The construction speed is fast. Foam concrete can be poured and flattened, and it does not need to be laid one by one, and its construction speed is faster than that of Styrofoam board1 3.
6. There are no seams, which reduces the heat loss caused by the seams.
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Anonymous users2024-02-04The construction process steps of foam concrete are as follows:
1. Clean up the base layer of the inspection point, review the on-site entity data such as pouring area, area, and thick core prudence according to the drawings (energy-saving division project), and carry out pouring construction only after concealed acceptance;
2. Sprinkle water to moisten the base layer, and take the surface of the base layer as wet and not causing water accumulation as the standard;
3. Prepare foam slurry, according to the ratio of foam concrete foaming agent and production process, prepare foam slurry, and the ready-mixed cement foam slurry should be used up within 4 hours;
4. To mix cement slurry, first add a certain amount of water to the mixer, and then put the weighed cement, other additives and admixtures into the mixer for stirring, and the time is not less than 2 minutes;
5. Soak it.
According to the concept defined by Professor Wang Hongzhen, an academic definition of microporous concrete, the main differences between light aggregate microporous concrete and foam concrete: 1. Light aggregate is aggregate, and cement stone is microporous structure with a pore diameter of about 1mm; However, foam concrete has no light aggregate aggregate and the pore size of matrix foam is more than 1mm. 2. Light aggregate microporous concrete is mostly made of micro-expansion fast-hardening cement, with very small shrinkage, which is more suitable for manufacturing wall products; Ordinary foam concrete is made of ordinary Portland cement, which has a large dry shrinkage.
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If you are doing standard culture test blocks, according to the specification, you need to make test blocks in two times according to the date of your two pourings; If you are doing homotrophic or impermeable test blocks, in fact, you only need to choose a group of test blocks at one time. In case your pool is a unit project (probably not, haha), unfortunately, whether it is a standard culture test block or a homotrophic test block or an impermeability test block, you need to make up 3 groups (standard culture needs to be done twice, and the same culture can be done once or twice) in order to evaluate the compressive strength of concrete in the future. Of course, these are all norms, in fact, if it is some small non-stressed components, if the owner and the supervisor agree, as long as one group is enough, or even one group is exempted.
Fire foam liquid can also be called water film-forming foam fire extinguishing agent, or light water foam fire extinguishing agent. Mainly composed of fluorocarbon surfactants. >>>More