Cement-based polymer mortar specially used for repairing and preparation method of mortar

A polymer, cement-based technology, applied in the field of construction mortar, can solve the problems of lack of uniform testing and evaluation methods and standards, affecting the development and market stability of repair mortar, hindering the benign development of products, etc., to improve volume stability, and ease of use. The effect of stable and excellent performance and guaranteed structural strength

Inactive Publication Date: 2018-07-17
合肥市闵葵电力工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, countries such as Europe have formulated relevant standards for repair mortar, but there is no unified testing and evaluation method and standard in China, which has affected the development and market stability of repair mortar in China
The repair mortar enterprise standards formulated by some production units differ greatly in terms of reference materials, test methods and technical indicators, resulting in uneven product quality among enterprises and hindering the healthy development of products. Therefore, it is necessary to formulate a kind of mortar with excellent comprehensive performance Repair mortar is very necessary

Method used

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  • Cement-based polymer mortar specially used for repairing and preparation method of mortar

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Experimental program
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Effect test

Embodiment 1

[0032] A special cement-based polymer mortar for repair, the following raw materials are obtained: 70kg of Wudalianchi volcanic mud, 20kg of modified composite mineral powder, 10kg of phosphogypsum slag, 4kg of sodium-based bentonite, 2kg of diabase fiber (fiber length is 600μm, aspect ratio 10), aminopropyltriethoxysilane 0.8kg, silicone resin polyether emulsion 3kg, sodium tripolyphosphate 0.4kg, polyacrylamide 0.2kg, calcium chloride 0.5kg, adhesion aid 1kg, water reducer : calcium lignosulfonate 0.8kg, foaming agent: microsphere foaming agent 2kg and anti-radiation agent: ferrocene 1kg;

[0033] Some raw materials are prepared by the following steps:

[0034] (1) Preparation of modified composite mineral powder:

[0035] Step 1: Obtain the following ingredients: 10kg of serpentine, 10kg of clinoptilolite, 15kg of hydrogen peroxide with a mass concentration of 20%, 0.6kg of potassium hydrogen phosphate, and 0.8kg of aminosilane coupling agent KH-5500.8kg;

[0036] Step 2:...

Embodiment 2

[0046] A special cement-based polymer mortar for repair, the following raw materials are obtained: 75kg of Wudalianchi volcanic mud, 20-25kg of modified composite mineral powder, 15kg of phosphogypsum slag, 5kg of sodium-based bentonite, 2.5kg of diabase fiber (the fiber length is 700μm, The aspect ratio is 11), aminopropyl triethoxysilane 1kg, silicone resin polyether emulsion 4kg, sodium tripolyphosphate 0.5kg, polyacrylamide 0.25kg, calcium chloride 0.6kg, adhesion aid 1.5kg, Water reducing agent: sodium sulfamate 0.9kg, foaming agent: ADC foaming agent 3kg and anti-radiation agent: ferrocene 1.25kg;

[0047] Some raw materials are prepared by the following steps:

[0048] (1) Preparation of modified composite mineral powder:

[0049] Step 1: Obtain the following ingredients: 11 kg of serpentine, 11 kg of clinoptilolite, 18 kg of hydrogen peroxide with a mass concentration of 25%, 0.7 kg of potassium hydrogen phosphate, and 1 kg of aminosilane coupling agent KH-5501;

[0...

Embodiment 3

[0060] A special cement-based polymer mortar for repair, the following raw materials are obtained: 80kg of Wudalianchi volcanic mud, 25kg of modified composite mineral powder, 20kg of phosphogypsum slag, 6kg of sodium bentonite, 3kg of diabase fiber (fiber length is 800μm, aspect ratio 12), aminopropyltriethoxysilane 1.2kg, silicone resin polyether emulsion 5kg, sodium tripolyphosphate 0.6kg, polyacrylamide 0.3kg, calcium chloride 0.7kg, adhesion aid 2kg, water reducer : calcium lignosulfonate 1.0kg, foaming agent: OBSH foaming agent 4kg and anti-radiation agent: ferrocene 1.5kg;

[0061] Some raw materials are prepared by the following steps:

[0062] (1) Preparation of modified composite mineral powder:

[0063] Step 1: Obtain the following ingredients: 12 kg of serpentine, 12 kg of clinoptilolite, 20 kg of hydrogen peroxide with a mass concentration of 30%, 0.8 kg of potassium hydrogen phosphate, and 1.2 kg of aminosilane coupling agent KH-550;

[0064] Step 2: Calcinate ...

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Abstract

The invention discloses cement-based polymer mortar specially used for repairing and a preparation method of the mortar, and relates to the technical field of building mortar. The mortar comprises thefollowing raw materials: Wudalianchi volcanic mud, modified composite mineral micropowder, phosphogypsum residues, sodium-based bentonite, diabase fibers, aminopropyltriethoxysilane, a silicone resinpolyether emulsion, sodium tripolyphosphate, polyacrylamide, calcium chloride, an adhesion auxiliary agent, a water reducing agent, a foaming agent and an anti-irradiation agent; and the mortar is prepared by performing mixing and grinding on the raw materials. The mortar disclosed by the invention is simple and convenient for preparation, and has the characteristics of excellent workability, volume structure stability, high compressive bonding strength, shock resistance, cracking resistance, seepage resistance, freeze resistance, corrosion resistance and the like; and the mortar has remarkably improved application durability, long service life and a wide range of application.

Description

technical field [0001] The invention relates to the technical field of construction mortar, in particular to a special cement-based polymer mortar for repair and a preparation method thereof. Background technique [0002] In today's world, the structural failure or building function failure caused by various reasons not only affects people's normal life, but also causes huge economic losses. More than 40% of the total construction investment in industrialized countries is used for building repair and reinforcement. Less than 60% is used for the construction of new buildings. In the United States, 40% of the bridges have been severely damaged, while in my country about 30% of the cement concrete pavement is damaged. Obviously, it is not economically feasible to completely replace or rebuild the damaged facilities. The only solution is repair. [0003] However, at present, countries such as Europe have formulated relevant standards for repairing mortar, but there is still no ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/14
CPCC04B28/143C04B2111/40C04B2201/32C04B2201/50C04B14/14C04B14/104C04B14/4643C04B24/42C04B22/16C04B24/2652C04B22/124C04B24/2611C04B24/045C04B24/18C04B24/40C04B14/047C04B14/042C04B22/068C04B38/02C04B24/16
Inventor 何飞
Owner 合肥市闵葵电力工程有限公司
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