Special mortar for aerated concrete using red mud as inorganic mineral thickening agent
A technology of air-entrained concrete and inorganic minerals, applied in the field of construction cement mortar, can solve the problems of less than 10% utilization rate, large land occupation, groundwater pollution, etc., and achieve improved workability, high crushing rate, and strong water retention Effect
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Embodiment 1
[0015] Example 1. It is made by mixing and stirring cement, fly ash, red mud, phosphorus slag particles and water according to the following mass percentages: cement 20%, fly ash 5%, red mud 5%, admixture 0.2%, phosphorus slag 70% , and the rest is water; the amount of water added is subject to the consistency of 90-110mm. Among them, the particle size of phosphorus slag particles is less than 1.25mm, and the moisture content is less than 0.5%; the cement is ordinary portland cement or slag portland cement, and the strength of cement is 32.5 or 42.5; the fly ash is grade II or above Commercial fly ash; the red mud is Bayer method or sintering method red mud, and its fineness is less than 1.18mm; the additive is a combination of water-retaining thickener and retarder, wherein the mass percentage of water-retaining thickener is 0.1% to 0.15% %, the mass percentage of retarder is 0.05% to 0.1%. The measured water retention of the mortar is 99.6%, the degree of delamination is 4...
Embodiment 2
[0016] Example 2. It is made by mixing and stirring cement, fly ash, red mud, phosphorus slag particles and water according to the following mass percentages: cement 15%, fly ash 5%, red mud 10%, admixture 0.15%, phosphorus slag 70% , and the rest is water, the amount of water added is subject to the consistency of 90-110mm. Among them, the particle size of phosphorus slag particles is less than 1.25mm, and the moisture content is less than 0.5%; the cement is ordinary portland cement or slag portland cement, and the strength of cement is 32.5 or 42.5; the fly ash is grade II or above Commercial fly ash; red mud is Bayer method or sintering method red mud, fineness less than 1.18mm; additive is a combination of water-retaining thickener and retarder, wherein the mass percentage of water-retaining thickener is 0.1% to 0.15% , the mass percent of the retarder is 0.05% to 0.1%. The measured water retention of the mortar is 99.1%, the delamination degree is 5mm, and the 28d comp...
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