Polymers anti-cracking mortar
An anti-cracking mortar and polymer technology, which is applied in the field of dry powder mortar for construction, can solve problems such as small shrinkage and deformation, and achieve the effects of small shrinkage and deformation, stable quality and high mixing uniformity.
Inactive Publication Date: 2009-01-07
闵博干
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- Application Information
AI Technical Summary
Problems solved by technology
[0007] The purpose of the present invention is to overcome the defects of the current common building dry powder functional mortar, and provide a polymer anti-crack mortar with high bonding strength, small shrinkage and deformation, and good anti-crack performance
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] Weigh 300Kg of dry pretreated 425# cement, 65Kg of fly ash, 600Kg of river sand, 22Kg of 5044 soluble rubber powder, 8Kg of 8034H soluble rubber powder, 2Kg of wood fiber, and 3Kg of hydroxypropyl methylcellulose, and add them to the mixer together, and stir After 10 minutes, the material is discharged, and the product is packaged after passing the test.
Embodiment 2
[0024] Take by weighing dry pretreated 425# cement 325Kg, fly ash 60Kg, quartz sand 585Kg, 5044 soluble rubber powder 25Kg, wood fiber 1Kg, hydroxypropyl methylcellulose 4Kg, add in the mixer together, stir 10 minutes, discharge, After passing the test, it is packaged as a finished product.
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The invention provides polymer crack-resistant mortar, which is prepared with 25 to 35 percent of cement, 55 to 65 percent of sand, 5 to 10 percent of pulverized fuel ash, 2 to 4 percent of soluble powdered gum, 0.1 to 0.5 percent of wood fiber, and 0.2 to 0.5 of hydroxypropyl methylcellulose through mixing. All of the indices of the polymer crack-resistant mortar meet the standard requirements of the Material for Exterior Wall Thermal Insulation System of Buildings (DBJ04-234-2005); the distortion resulting from drying shrinkage of the polymer crack-resistant mortar is small; the cohesive strength is high with high crack resistance, placeability and moisture retention; the hardened polymer crack-resistant mortar can be bonded to the wall or other parent materials well, and can prevent internal wall and external wall from cracking. The beating uniformity is high; the quality is stable; and the quality of building construction is guaranteed by adopting the polymer crack resistant mortar for construction.
Description
technical field [0001] The invention relates to a building dry powder mortar, in particular to an anti-cracking mortar for coating and decorating the surface of a thermal insulation system. Background technique [0002] With the continuous improvement of people's requirements for the quality, beauty and comfort of buildings, higher requirements are also put forward for building materials. The continuous production and application of new energy-saving wall materials such as aerated concrete, lightweight ceramsite hollow bricks, and hollow fly ash blocks have not only improved the construction quality, but also improved the thermal insulation and air permeability of the wall, and also solved the problem of many environmental issues. However, the currently widely used on-site mixing mortar not only has engineering quality problems such as water leakage, cracks, low bonding strength, and easy peeling, but also has a single function, which can only play the role of wall adhesive...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C04B28/04C04B18/08C04B14/06C04B16/02C04B24/38
CPCC04B2111/343C04B28/02Y02W30/91C04B14/06C04B18/08C04B18/26C04B24/14C04B24/383
Inventor 闵博乾
Owner 闵博干
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