Gel material for consolidating wastes and method for preparing construction material
A technology of cementitious materials and building materials, which is applied in the field of building materials, can solve problems such as difficulty in widespread use and limited application, and achieve the effects of low cost, improved resource utilization, and reduced accumulation
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Embodiment 1
[0039] 50% phosphoric acid solution, 45% magnesia powder and 5% boric acid powder are weighed according to the mass ratio. After fully stirring the weighed magnesium oxide powder and boric acid powder to form a powder mixture, add the phosphoric acid solution and continue stirring to form a slurry.
[0040] Weigh 40 kg of pretreated solid waste from a factory in Shanghai, and add 60 kg of the above-mentioned slurry into the stirring pot for stirring. During the stirring, add 5 kg of water according to the fluidity. After the stirring is sufficient, pour it to the size In the test mold of 150×150×150mm, after curing at room temperature for 7 days, the compressive strength test was carried out, and the strength was 40MPa.
[0041] The slurry obtained by the method can be used to produce solid bricks and hollow bricks and the like, has sufficient strength and good durability, and can replace clay bricks and concrete blocks and the like currently used in construction projects.
Embodiment 2
[0043] Take by weight 40% concentration of 50% phosphoric acid solution, 51% aluminum oxide powder and 6% borax powder. After fully stirring the weighed aluminum oxide powder and borax powder to form a powder mixture, add the phosphoric acid solution and continue stirring to form a slurry.
[0044] Weigh 50 parts of the pretreated waste EPS particles by volume, and 50 parts of the above-mentioned slurry are added to the stirring pot for stirring. After the stirring is sufficient, they are poured into a test mold with a size of 150×150×150mm and applied 0.5MPa pressure to maintain molding. After 7 days of curing at room temperature, the compressive strength test was carried out, and its strength was 15MPa.
[0045] The slurry obtained by the method can be used to produce EPS blocks or EPS concrete insulation boards, which have sufficient strength and good durability, and are used to replace various heat insulation boards and wall materials currently used in construction projec...
Embodiment 3
[0047] Take by weight 45% concentration of 50% phosphoric acid solution, 52.25% iron oxide powder and 2.75% citric acid powder. After fully stirring the weighed iron oxide powder and citric acid powder to form a powder mixture, add the phosphoric acid solution and continue stirring to form a slurry.
[0048] Weigh 40 kg of sludge deposited in a sewage plant in Shanghai, add 60 kg of the above-mentioned slurry into a stirring pot for stirring, and pour it into a test mold with a size of 150×150×150mm after stirring fully. After 7 days of curing, the compressive strength test was carried out, and the strength was 20MPa.
[0049]The slurry obtained by the method can be used to produce isolation piers for roads, road bases, road cornerstones, floor tiles for roads, square bricks, and mountain landscaping, etc. It has sufficient strength and good durability, and can be used as Various concrete substitutes used in
PUM
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