Masonry mortar and preparation method thereof
A technology of masonry mortar and defoamer, which is applied in the field of mortar, and can solve the problems affecting the use of masonry mortar, the large difference in expansion coefficient between iron ore slag and cement, and the mortar is easy to shell and crack.
Inactive Publication Date: 2017-09-08
CENT SOUTH UNIV
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Problems solved by technology
[0004] The above-mentioned technology can obtain high-strength masonry mortar with high water retention rate and high cohesion; however, due to the large difference in expansion coefficient between iron slag and cement, a large strain is easily generated inside the above-mentioned masonry mortar during use, causing the mortar to easily crack. The cracking of the shell affects the use of the above-mentioned masonry mortar, especially the mortar of the outdoor wall cannot be used at all
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0021] A masonry mortar, including 180 parts of cement, 1180 parts of sand, 27 parts of fly ash and 18 parts of additives, the components of the additives are 8 parts of cellulose ether, 32 parts of naphthalenesulfonic acid methylene condensate, 1.6 parts of poly Oxyethylene polyoxypropanolamine ether, 6.4 parts of AT powder and 80 parts of iron ore powder or copper ore powder.
[0022] In this embodiment, the cellulose ether is one of hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether or a mixture of both, and the mixing ratio is 1:1-2:1.
[0023] The preparation method of the masonry mortar in this example, 1) mix the defoamer and AT powder evenly, and grind them into a uniform powder mixture; Mix alkanolamine ether with cement, then add inorganic mineral powder and naphthalenesulfonate methylene condensate to disperse evenly; 3) Mix sand and fly ash evenly, add thickener powder to disperse evenly, add water, stir evenly and Let stand for 5 minutes....
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Abstract
The invention discloses masonry mortar which comprises the following raw materials: 150-200 parts of cement, 1000-1300 parts of sand, 25-30 parts of fly ash and 15-20 parts of additives, wherein the additives comprise 5-10 parts of cellulose ether, 30-35 parts of a water reducing agent, 0.5-2 parts of a defoamer, 5-7 parts of AT powder and 50-100 parts of inorganic mineral powder; and the defoamer is adsorbed on the AT powder. The masonry slurry provided by the invention is plastering slurry which is used as an outer wall protection body; the masonry slurry provided by the invention has a gas content of 3%-7% after preparation; and the slurry has excellent bonding power, high impermeability, high crack resistance and other high properties at this time.
Description
technical field [0001] The invention relates to a mortar, in particular to a masonry mortar for plastering a surface and a preparation method thereof. Background technique [0002] Masonry mortar is mainly used for masonry, and the construction industry generally requires masonry mortar to have high strength. On the one hand, traditional masonry mortar is mainly made of cement, and the amount of cement is often increased to meet high-strength requirements, resulting in high prices for traditional masonry mortar; First, while generating economic benefits, a large amount of discarded iron ore slag accumulated year by year has seriously polluted the environment. [0003] Since the strength of iron slag is not inferior to that of cement, inspired by this, some researchers have formulated masonry mortar with cement and iron slag as raw materials, thereby reducing the cost of mortar and solving the pollution problem of waste iron slag; and , in order to improve the water retenti...
Claims
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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00646C04B14/06C04B18/08C04B24/383C04B24/20C04B24/2652C04B18/12C04B24/24
Inventor 贾明聂更新艾亮
Owner CENT SOUTH UNIV