Adhesive special for sand aerated concrete boards and preparation method of adhesive
A technology for aeration of concrete and sand, applied in the field of building materials, can solve the problems of easy hollowing, unsightly, color difference, etc. good compression effect
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[0027] A method for preparing the special binder for sand aerated concrete slabs as described above, comprising the following steps:
[0028] (1) The components are divided into Portland cement 25%~30%, quartz sand 50%~58%, sand aerated concrete plate waste 15%~20%, redispersible latex powder 1.5%~2.0%, 0.1%~0.3% of hydroxypropyl methylcellulose ether, 0.1%~0.3% of wood fiber, 0.04%~0.08% of starch ether, and 0.1%~0.2% of polypropylene fiber;
[0029] (2) Put the components of step 1 into quartz sand and sand aerated concrete slab waste first, then into Portland cement, and finally add redispersible latex powder, hydroxypropyl methylcellulose ether, wood fiber, Starch ether and polypropylene fiber are stirred evenly, and the stirring time is ≥180s to prepare the dry powder of the special binder for sand aerated concrete slabs.
Embodiment 1
[0031] The components are 27% of 32.5 grade white Portland cement, 60.62% of quartz sand (particle size ≤ 1mm), 10% of sand aerated concrete plate waste, 1.5% of redispersible latex powder, hydroxypropyl methylcellulose 0.3% plain ether, 0.3% wood fiber, 0.08% starch ether, and 0.2% polypropylene fiber (length 3mm) for batching.
[0032] Put the above components into quartz sand and sand aerated concrete slab waste first, then into Portland cement, and finally add redispersible latex powder, hydroxypropyl methylcellulose ether, wood fiber, starch ether, polypropylene fibers, stir evenly, and the stirring time is ≥180s, and the dry powder of the special binder for sand aerated concrete panels is prepared.
[0033] Mix the prepared binder with water, the ratio of binder to water is 3:1, first pour the water into the mixing container, then put the binder into the mixing container, and use electric tools to stir evenly It is made into the shape of cement, and the consistency is s...
Embodiment 2
[0036] The components are 30% of 32.5 grade white Portland cement, 59.32% of quartz sand (particle size ≤ 1mm), 8% of sand aerated concrete plate waste, 1.8% of redispersible latex powder, hydroxypropyl methylcellulose 0.3% plain ether, 0.3% wood fiber, 0.08% starch ether, and 0.2% polypropylene fiber (6mm in length) for batching.
[0037] Put the above components into quartz sand and sand aerated concrete slab waste first, then into Portland cement, and finally add redispersible latex powder, hydroxypropyl methylcellulose ether, wood fiber, starch ether, polypropylene fibers, stir evenly, and the stirring time is ≥180s, and the dry powder of the special binder for sand aerated concrete panels is prepared.
[0038] Mix the prepared binder with water, the ratio of binder to water is 3.5:1, first pour the water into the mixing container, then put the binder into the mixing container, and use electric tools to stir evenly It is made into the shape of cement, and the consistency ...
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