41results about How to "Not prone to hollowing" patented technology

The present invention relates to the field of building materials, in particular to a special binder for glass-ceramics; the special binder for glass-ceramics includes α-type high-strength gypsum, tailings sand, and a volume stabilizer; wherein, α-type high-strength gypsum is produced by an industrial vice The gypsum is prepared by dissolving and recrystallizing in a saturated water vapor medium; the volume stabilizer is a mixture of expansion reducing agent and shrinkage reducing agent; the expansion reducing agent is tartaric acid; the shrinkage reducing agent is type II anhydrous anhydrite ; The mass ratio of the α-type high-strength gypsum, the tailings sand and the volume stabilizer is 30-50:50-70:1-3. The pH value of the special binder for glass-ceramics of the present invention is neutral, has good compatibility with glass-ceramics, and is especially suitable for masonry and bonding of glass-ceramics; Compared with the adhesives in the prior art, the strength development speed of the adhesive is fast, the construction efficiency is high, the bonding strength is high, it is not easy to fall off, the dimensional stability is good, and hollowing is not easy to occur; and the cost is low.

The invention discloses a low-elasticity tile adhesive, belonging to the field of tile adhesives. The low-elasticity tile adhesive is prepared from the following components in parts by mass: 300-500 parts of Portland cement, 0-100 parts of calcium powder, 0-200 parts of 30-100-mesh quartz sand, 200-400 parts of 100-180-mesh quartz sand, 0-10 parts of an early strength agent, 1-3 parts of hydroxypropyl methyl cellulose, 1-5 parts of guar gum ether, 0-2 parts of starch ether, 4-10 parts of a magnesium aluminum silicate thixotropic thickener and 5-20 parts of redispersible latex powder. According to the low-elasticity tile adhesive, the mixing amount of hydroxypropyl methyl cellulose is reduced, and the guar gum ether, the starch ether and the magnesium aluminum silicate thixotropic thickener are added, so that the cohesion and elasticity of tile adhesive slurry are greatly reduced when the primary excellent water retention capacity of the tile adhesive is guaranteed, the contradiction between the low elasticity and high water retention capacity is solved, the construction and the rolling are easy, the adhesion is flat, the hollowing is unlikely to occur, and the adhesion quality of tiles is improved.

The invention provides a defoaming machine, comprising a frame, a support plate is horizontally arranged on the frame, two ends of the support plate are fixedly connected with connecting steel plates, and the lower part of the connecting steel plate is fixedly connected with the bearing arranged on the main shaft; A main shaft transmission motor is fixed at one end of the support plate; the main shaft can rotate inside the bearing, and the outer surface of the main shaft is uniformly provided with defoaming parts; the main shaft transmission motor drives the main shaft to rotate. The defoaming machine of the present invention directly removes the air bubbles in the foamed body of the foamed cement surface, so that the foamed body of the surface layer becomes a clean slurry layer, which can be rechecked and connected with the core material to achieve very high strength; The removal of the surface foam body causes waste, and the surface foam body can be solidified synchronously with the foamed cement below after becoming a clean slurry layer, which is not easy to produce hollowing; avoiding the removal of the surface layer foam body and the application of cement slurry containing glass fiber mesh and other processes, so the process can be reduced and the production efficiency can be improved.

The invention belongs to the field of building, and discloses inorganic composite flexible decorative coiled materials. The thickness of the inorganic composite flexible decorative coiled materials is 2mm to 10mm, the inorganic composite flexible decorative coiled materials comprise an inorganic coiled material mortar layer, a decorative mortar layer is combined on the inorganic coiled material mortar layer, and reinforcing materials formed by alkali-resisting glass fiber gridding cloth or glass fiber roofing felts are arranged in the inorganic coiled material mortar layer or on the boundary of the inorganic coiled material mortar layer and the decorative mortar layer. The inorganic coiled material mortar layer is mainly formed by the following materials, by weight: 100 parts of portland cement with intensity no less than 42.5, 1.2 to 2.0 parts of cellulose, 350 to 450 parts of 50 to 100-mesh silica sand, 180 to 220 parts of coarse whiting, 1.8 to 2.2 parts of water reducing agent and 120 to 160 parts of 707 emulsion or cement-based elastic emulsion. The decorative mortar layer is mainly formed by the following materials, by weight: 150 parts of synthetic resin emulsion for maishi paint, 4 to 6 parts of coalescing agent, 8 to 12 parts of ethylene glycol, 1 to 2 parts of cellulose and 700 to 800 parts of natural color sand. The inorganic composite flexible decorative coiled materials are good in toughness, small in thickness, light in weight, good in application property, not prone to peeling off and good in weather fastness, and different decorative styles can be formed easily.