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Superplasticizer for bored secant pile of subway

A technology of drilling occlusal pile and water reducing agent, applied in the field of water reducing agent, can solve the problems of poor setting retarding effect, poor adaptability of raw materials, poor water retention, etc., and achieves good retarding effect, improved construction and water reducing effect. Good results

Inactive Publication Date: 2014-03-05
ANHUI FUNAN LVYUAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the water reducing agents currently used have great shortcomings, such as poor adaptability of raw materials, poor retarding effect, poor water retention, etc. Therefore, it is very necessary to produce high-performance water reducing agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A water reducer for subway bored occlusal piles, which is composed of the following raw materials in parts by weight (kg):

[0014] Haiyun brand BT-4018 early strength polycarboxylate superplasticizer 52, maltodextrin 3, sodium hexametaphosphate 1, formamide 0.8, dinonyl naphthalene sulfonate barium 0.5, sorbitol 3, copper oxide 0.5 , thioglycolic acid 2, potassium phosphate 1, tackifier 0.5;

[0015] Described thickening agent is made up of the raw material of following weight part:

[0016] SBR latex adhesive 30, nano carbon 2, jade powder 1, bentonite 3, rosin 3, eucalyptus oil 2, pentaerythritol 2;

[0017] Heat the above-mentioned pentaerythritol to 165°C, add jade powder and bentonite, stir and disperse at 600 rpm for 10 minutes, add nano-carbon, ball mill for 5 minutes, heat and melt the rosin and add, mix well, finally add styrene-butadiene latex adhesive, and fully ball mill , cooled to obtain the tackifier.

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PUM

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Abstract

The invention discloses a superplasticizer for a bored secant pile of a subway. The superplasticizer is characterized by being prepared by mixing the following raw materials in parts by weight: 45 to 52 parts of polycarboxylate superplasticizer, 3 to 4 parts of maltodextrin, 1 to 3 parts of sodium hexametaphosphate, 0.8 to 1 part of formamide, 0.5 to 1 part of barium dinonyl napthalene sulphonate, 2 to 3 parts of sorbitol, 0.2 to 0.5 part of copper oxide, 1 to 2 parts of thioglycollic acid, 1 to 2 parts of potassium phosphate and 0.5 to 2 parts of tackifier. The superplasticizer is good in water reducing effect and coagulation retarding effect, and can be used for improving the constructability, the impermeability and the like of concrete so as to improve the durability of the concrete.

Description

technical field [0001] The invention mainly relates to a water-reducing agent, in particular to a water-reducing agent for subway bored occlusal piles. Background technique [0002] Water reducing agent refers to the admixture that can reduce the mixing water consumption and improve the concrete strength under the condition of constant workability and cement dosage of concrete; or save the dosage of cement under the condition of constant workability and strength. Some of the water reducing agents currently used have great shortcomings, such as poor adaptability of raw materials, poor retarding effect, poor water retention, etc. Therefore, it is very necessary to produce high-performance water reducing agents. Contents of the invention [0003] The object of the present invention is to provide a water reducing agent for subway bored occlusal piles. [0004] The present invention is achieved through the following technical solutions: [0005] A water reducer for su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/30
Inventor 李磊
Owner ANHUI FUNAN LVYUAN CHEM