Modified cement-based self-leveling mortar and preparation method and application thereof
A self-leveling mortar and cement-based technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the inconsistent deformation of the interface between the self-leveling layer and the foundation layer, the volume shrinkage of the self-leveling layer, and the inconsistent deformation of the interface and other problems, to achieve self-leveling performance and impact resistance, good flexibility, simple preparation and application methods, and high mechanical properties
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[0033] The preparation method of the above-mentioned modified cement-based self-leveling mortar adopts the direct mixing method. First, the above-mentioned materials are calculated and weighed in proportion, and then they are mixed evenly in a dry-mixed mortar mixer before packaging, so as to obtain pure acrylic latex powder. Cement-based self-leveling mortar.
[0034] When the above-mentioned modified cement-based self-leveling mortar is applied, first add appropriate water, and evenly add the prepared self-leveling mortar during the stirring process, and then use an electric mixer to stir the mixture of mortar and water. In the mixture, the ratio of mortar to water is 1:0.2. In addition, in order to make the water and mortar mix faster and more fully, the ratio of water in the mixture can also be increased from 0.2 to 0.3. Therefore, in the mixture after stirring and molding, the ratio of mortar to water is 1:0.3. Among them, the stirring is divided into two times, the tim...
Embodiment 1
[0036] The invention provides a modified cement-based self-leveling mortar, which is composed of cement, anhydrite, water retention agent, retarder, lignocellulose, carbonate, defoamer, water reducer, aggregate, heavy calcium carbonate and Pure acrylic latex powder blended. Among them, the weight percentage of each material component is: aggregate 50%, cement 31%, anhydrite 13%, heavy calcium carbonate 5%, water retaining agent 0.05%, carbonate 0.05%, retarder 0.4%, wood 0.3% cellulose, 0.2% defoamer, 0.6% water reducer, 1.5% pure acrylic latex powder.
[0037] Among them, the cement is a composite cement synthesized by ordinary portland silicate cement and high alumina cement, or other composite cement that can replace the above composite cement, and the aggregate is one of quartz sand, river sand or industrial waste aggregates. The agent is one of cellulose ether or Wenlun rubber, the water reducer is one of melamine or polycarboxylic acid, the retarder is one of tartaric a...
Embodiment 2
[0041] The invention provides a modified cement-based self-leveling mortar, which is composed of cement, anhydrite, water retention agent, retarder, lignocellulose, carbonate, defoamer, water reducer, aggregate, heavy calcium carbonate and Pure acrylic latex powder blended. Among them, the weight percentage of each material component is: aggregate 60%, cement 35%, anhydrite 14%, heavy calcium carbonate 10%, water retaining agent 0.2%, carbonate 0.1%, retarder 0.6%, wood 0.5% cellulose, 0.25% defoamer, 0.7% water reducer, 3% pure acrylic latex powder.
[0042] Among them, the cement is a composite cement synthesized by ordinary portland silicate cement and high alumina cement, or other composite cement that can replace the above composite cement, and the aggregate is one of quartz sand, river sand or industrial waste aggregates. The agent is one of cellulose ether or Wenlun rubber, the water reducer is one of melamine or polycarboxylic acid, the retarder is one of tartaric aci...
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