Super strength silicate cement adhesive and preparation method thereof
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A technology of cement adhesive and portland cement, which is applied in the manufacture of tools, ceramic molding machines, etc., can solve the problems that cannot satisfy the production of high-tonnage suspension porcelain insulators, and achieve good compactness, good durability, and high strength. Effect
Active Publication Date: 2012-10-10
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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Patent 200910010971.3 and Patent 201110190809.1 increase the strength of the adhesive by adding water reducing agents and adjusting the composition of...
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Embodiment 1
[0015] Embodiment 1: A kind of super-strength Portland cement adhesive, the raw material composition of this adhesive and its weight content ratio are Portland cement 30.5%, quartz sand 35.2%, silicon fume 4.2%, slag 12.7%, powder Coal ash 4.2%, water reducing agent 0.9%, water 12.3%.
[0016] Among them, the cement first meets the requirements of GB175-1999, and the label is not less than 52.5 or 52.5R Portland cement; the particle size of the quartz sand is 80-120 mesh, which meets GB178-1977. The micro-aggregate is a mixture of silicon powder, slag and fly ash, and their average particle size is required to be less than 0.01 μm. The water reducer is a polycarboxylate water reducer. This experiment uses a polycarboxylate high-performance water reducer produced by Suzhou Xingbang Chemical Building Materials Co., Ltd., the model is SUNBO PC-1016, which conforms to JG / T 223-2007 .
[0017] The preparation method of the above-mentioned adhesive is as follows: first mix cement,...
Embodiment 2
[0018] Embodiment 2: basically the same as Embodiment 1, the difference is the raw material ratio of cement: Portland cement 31.4%, quartz sand 34.8%, silicon powder 4.1%, slag 12.2%, fly ash 4.1%, reducing Aqua 0.9%, water 12.5%.
Embodiment 3
[0019] Embodiment 3: basically the same as Embodiment 1, the difference is the raw material ratio of cement: Portland cement 40.0%, quartz sand 26.8%, silicon powder 3.8%, slag 11.6%, fly ash 3.8%, reducing Aqua 1.0%, water 13.0%.
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Abstract
The invention discloses a super strength silicate cement adhesive and a preparation method thereof. The adhesive is mainly prepared from the following raw materials in percentage by weight: 30 to 40 percent of cement, 25 to 43 percent of quartz sand, 9 to 24 percent of micro aggregates, 0.9 to 2 percent of water reducing agent and 11 to 14 percent of water. The preparation method comprises the following steps of firstly, uniformly mixing the cement, the micro aggregates, the water reducing agent and the quartz sand, then continuously stirring for 4 minutes and immediately forming after taking out the mixture; after the obtained product is formed, placing the obtained product into a curing box at the temperature of 35 DEG C to carry out steaming-curing under the humidity of not lower than 95 percent, demoulding after 4 to 12 hours, and placing a demoulding specimen into hot water at the temperature of 45 to 80 DEG C to carry out curing for 48 to 96 hours; and finally, testing the qualification of the product to obtain the cement adhesive. The cement adhesive disclosed by the invention has the excellent performances of excellent compaction, high strength, excellent durability and the like, is suitable for electrotechnical porcelain products such as a high-tonnage suspension type porcelain insulator and the like and has low cost.
Description
technical field [0001] The present invention relates to a super-strength cement adhesive added with micro-aggregate, specifically, the present invention relates to a silicate used in high-tonnage suspended porcelain insulator porcelain sleeves with excellent properties such as good compactness, high strength and good durability Cement binder. Background technique [0002] At present, the cement adhesive used in various domestic electric porcelain factories has much lower mechanical strength than porcelain parts and metal accessories. The cement adhesive has been paid more and more attention, especially the cement adhesive used for high-tonnage suspension porcelain insulators. mixture. Patent 200910010971.3 and Patent 201110190809.1 increase the strength of the adhesive by adding water reducing agents and adjusting the composition of cement, but the maximum compressive strength is only 110MPa, which obviously cannot meet the needs of high-tonnage suspension porcelain insulat...
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