Anti-cracking bonding mortar
A technology for bonding mortar and cement, applied in the field of bonding mortar, can solve the problems of influence, leakage, restricting the application of bonding slurry, etc., and achieve the effects of high early strength and later strength, fast setting and hardening, and changing the adhesion effect.
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Embodiment 1
[0025] An anti-crack adhesive mortar, which is prepared by mixing the following raw materials in parts by weight: first, 130 parts of cement; 40 parts of fly ash; 260 parts of sand; pour it into a mixer and stir for 3 to 4 minutes, and mix evenly;
[0026] Then 0.4 parts of cellulose ether; 0.1 parts of modified starch ether; 2.9 parts of rubber powder; 0.05 parts of air-entraining agent; 0.2 parts of polyester fiber; 2.0 parts of thixotropic agent; Stir in the mixer for 4 to 5 minutes, mix evenly, and make a bonding powder slurry; the particle size of the zinc oxide powder is 300 mesh; the sand is composed of 40 mesh sand and 70 mesh sand in a mass ratio of 1:1; cement is selected Ordinary Portland cement with a strength grade of 42.5; cellulose ether is hydroxypropyl methylcellulose with a molecular weight of 100,000-200,000 and a viscosity of more than 100,000 mpas; the length of wood fibers is 6 mm; the length of polyester fibers is It is 10mm and the diameter is 22μm.
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Embodiment 2
[0029] An anti-crack adhesive mortar, which is prepared by mixing the following raw materials in parts by weight: first, 130 parts of cement; 40 parts of fly ash; 260 parts of sand; pour it into a mixer and stir for 3 to 4 minutes, and mix evenly;
[0030] Then 0.4 parts of cellulose ether; 0.1 parts of modified starch ether; 3.0 parts of rubber powder; 0.08 parts of air-entraining agent; 0.2 parts of polyester fiber; 2.2 parts of thixotropic agent; Stir in the mixer for 4 to 5 minutes, mix evenly, and make a bonding powder slurry; the particle size of the zinc oxide powder is 300 mesh; the sand is composed of 40 mesh sand and 70 mesh sand in a mass ratio of 1:1; cement is selected Ordinary Portland cement with a strength grade of 42.5; cellulose ether is hydroxypropyl methylcellulose with a molecular weight of 100,000-200,000 and a viscosity of more than 100,000 mpas; the length of wood fibers is 6 mm; the length of polyester fibers is It is 10mm and the diameter is 22μm.
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Embodiment 3
[0033] An anti-crack adhesive mortar, which is prepared by mixing the following raw materials in parts by weight: first, 130 parts of cement; 40 parts of fly ash; 260 parts of sand; pour it into a mixer and stir for 3 to 4 minutes, and mix evenly;
[0034] Then 0.4 parts of cellulose ether; 0.1 part of modified starch ether; 3.1 parts of rubber powder; 0.1 part of air-entraining agent; 0.2 parts of polyester fiber; 2.4 parts of thixotropic agent; Stir in the mixer for 4 to 5 minutes, mix evenly, and make a bonding powder slurry; the particle size of the zinc oxide powder is 300 mesh; the sand is composed of 40 mesh sand and 70 mesh sand in a mass ratio of 1:1; cement is selected Ordinary Portland cement with a strength grade of 42.5; cellulose ether is hydroxypropyl methylcellulose with a molecular weight of 100,000-200,000 and a viscosity of more than 100,000 mpas; the length of wood fibers is 6 mm; the length of polyester fibers is It is 10mm and the diameter is 22μm.
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