Environmentally friendly putty powder: invented by Zhang Lianjun and Lei Jianhua, this environmentally friendly putty powder mainly consists of 70 to 90 parts of aggregate, 4 to 10 parts of binder, and 2 to 4 parts of additives. Aggregate is a mixture of building gypsum powder, wollastonite powder, and talc powder; The adhesive can be one of wood fiber, carboxymethyl cellulose, styrene acrylic lotion or polyurethane; Additives are a mixture of defoamers, fungicides, and crack inhibitors. This putty powder has the advantages of being environmentally friendly, pollution-free, odorless, and scrub resistant.
Desulfurized gypsum based putty powder: Cui Lixia, Zhang Mingke, and Wang Jiana prepared a new environmentally friendly dry powder indoor putty powder using desulfurized gypsum and white Portland cement as the main raw materials, supplemented with a small amount of hydroxypropyl methyl cellulose (HPMC) and dispersible latex powder. Research has found that the bonding strength of putty powder increases first and then decreases with the increase of desulfurization gypsum dosage. When the desulfurization gypsum dosage is 50%, the bonding strength of putty powder is the highest. Meanwhile, the bonding strength of indoor putty powder prepared from desulfurization gypsum dried at 120 ℃ is the highest, reaching 0.63MPa.
Aromatic Interior Wall Putty Powder: The aromatic interior wall putty powder invented by Zhang Lianjun and Lei Jianhua is composed of 45-60 parts white cement, 25-38 parts diatomaceous earth, 5-10 parts bamboo charcoal fiber, 4-8 parts fragrance, 10-15 parts adhesive, and 2-4 parts crack resistant additive. This putty powder has good water resistance, anti cracking, easy construction, economic and environmental protection, and is aromatic, which can improve the comfort of the environment.
Fly ash and steel slag based putty powder: Duan Dedan, Liao Hongqiang, and Hou Yuzhuo studied the feasibility of using fly ash and steel slag to prepare putty powder for building exterior walls. Solid waste based putty powder for exterior walls of buildings was prepared using fly ash, steel slag, and cement as the main raw materials, with a small amount of hydroxypropyl methyl cellulose and dispersible latex powder added. The results showed that under the same conditions, when the proportion of fly ash and steel slag was 50%, the bonding strength of putty powder reached the highest, which was 0.83MPa and 0.87MPa respectively, an increase of 29% and 36% compared to pure cement; When the proportion of fly ash and steel slag is 70%, the bonding strength of putty powder is 0.62MPa and 0.69MPa, respectively, both of which meet the national standard requirements.
Mold proof putty powder: The mold proof putty powder invented by Zhang Lianjun and Lei Jianhua consists of 70-90 parts of heavy calcium carbonate powder, 10-20 parts of white cement, 10-20 parts of dolomite, 20-30 parts of gypsum powder, 2-4 parts of carboxymethyl fiber powder, 2-4 parts of retarder, and 1-3 parts of thickener. This putty powder can prevent wall mold during humid seasons and is beneficial to human health.
Solid waste based putty powder for indoor construction: Duan Dedan, Liao Hongqiang, and Wang Jiana prepared putty for indoor construction using solid waste active powder and cement as the main raw materials, supplemented with a small amount of hydroxypropyl methyl cellulose (HPMC) and dispersible latex powder. Research has shown that partially or completely replacing cement with solid waste active powder can prepare putty powder that meets the requirements of JG/T 298-2010 "Putty for Interior Use in Buildings". As the amount of solid waste active powder increases, the surface drying time of putty powder becomes shorter. When completely replacing cement, the surface drying time is reduced by half compared to when not replacing cement. The bonding strength of putty powder shows a trend of first increasing and then decreasing. The bonding strength of putty powder made by replacing 50% cement with solid waste active powder is the best, reaching 0.53 MPa, which is 40% higher than the bonding strength of putty powder made by 100% cement.
Interior wall putty powder: invented by Zhang Lianjun and Lei Jianhua, it consists of 30-40 parts of white cement, 25-38 parts of diatomaceous earth, 15-21 parts of heavy calcium, 10-17 parts of adhesive, and 3-5 parts of additives. This putty powder has the advantages of high universality, good water resistance, anti cracking, easy construction, safety and environmental protection.
Exterior wall putty powder: The exterior wall putty powder invented by Zhang Lianjun and Lei Jianhua is composed of 70-75 parts of heavy calcium carbonate powder, 25-30 parts of gray calcium, 3-5 parts of wood fiber, 70-75 parts of building gypsum, 25-30 parts of talcum powder, and 7-10 parts of gelatin powder. This putty powder has good water resistance, high strength, and high adhesion.
Gasification ash based putty powder: Duan Dedan, Liao Hongqiang, and Hou Yuzhuo studied the technical feasibility of using gasification ash instead of cement to prepare putty powder. Using gasification ash and 42.5 cement as the main raw materials, combined with a small amount of hydroxypropyl methyl cellulose and dispersible latex powder, gasification ash based putty powder is prepared. The research results indicate that using gasification ash instead of cement products to prepare putty powder is feasible. Among them, when gasification ash replaces 50% cement, the bonding strength of putty powder is 0.82 MPa, and all performance is better than the requirements of the standard JG/T 157-2009 for putty powder used on building exterior walls. Under the same conditions, when gasification ash replaces no more than 70% of cement, the bonding strength and other indicators of putty powder meet the requirements of the JG/T 157-2009 standard for putty powder used on building exterior walls.
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