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Green high-performance concrete

A high-performance concrete and green technology, applied in the field of building materials, can solve the problems of high waste of resources, poor strength and durability of repair parts, complicated processes, etc., and achieve reduced energy consumption, strong oxidation resistance, and strong corrosion resistance. Effect

Active Publication Date: 2017-05-10
GUANGXI SHENGTIAN CEMENT PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of water reducing agent requires high temperature to complete, and the process is complicated and the waste of resources is high.
[0005] During the hardening process of the paved concrete, the water evaporates slowly and the evaporation rate is uneven, and many fine pores will be formed due to the evaporation of water, which will affect the strength of the concrete
[0006] When laying roads, laying them in parallel multiple times will easily form large gaps between the concrete, and due to stress, some small gaps will also be produced during the hardening process of the concrete, which will have a negative impact on the strength and durability of the concrete
[0007] At present, the repair method of damaged concrete is relatively simple, but the repair result is unsatisfactory, the road surface is uneven, and the strength and durability of the repaired place are worse than before.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] First prepare the gelling aid, nucleating agent and water reducer as follows:

[0041] (1) The preparation method of the gelling aid is specifically:

[0042] a. Mix β-cyclodextrin, silicon dioxide and water at a mass ratio of 1:4.5:2.5, soak for 1.5 hours, and dry the water at 65°C to obtain the third mixture;

[0043] B adds the expanded perlite of 35% of its quality in the third mixture in a, mixes evenly and gets final product;

[0044] (2) The preparation method of the nucleating agent is specifically: grind stone and anhydrite into powder according to the mass ratio of 1:1.5, and the particle size is 0.5mm, then add ferric chloride and copper sulfate and mix evenly, ferric chloride and sulfuric acid The total mass of copper is 1.2% of the total mass of stone and anhydrite;

[0045] (3) The preparation method of water reducing agent is specifically:

[0046] Step 1, the prenol polyoxyethylene ether of 90 parts by weight, the potassium persulfate of 1 part by weigh...

Embodiment 2

[0059] First prepare the gelling aid, nucleating agent and water reducer as follows:

[0060] (1) The preparation method of the gelling aid is specifically:

[0061] a. Mix β-cyclodextrin, silicon dioxide and water at a mass ratio of 1:4:2, soak for 1 hour, and dry the water at 50°C to obtain the third mixture;

[0062] B adds 30% expanded perlite of its quality to the third mixture in a, mixes evenly and gets final product;

[0063] (2) The preparation method of the nucleating agent is as follows: grind stone and anhydrite into powder according to the mass ratio of 1:1, and the particle size is 0.075mm, then add ferric chloride and copper sulfate and mix evenly, ferric chloride and sulfuric acid The total mass of copper is 1% of the total mass of stone and anhydrite;

[0064] (3) The preparation method of water reducing agent is specifically:

[0065] Step 1, the prenol polyoxyethylene ether of 85 parts by weight, the potassium persulfate of 0.8 parts by weight, the diisop...

Embodiment 3

[0078] First prepare the gelling aid, nucleating agent and water reducer as follows:

[0079] (1) The preparation method of the gelling aid is specifically:

[0080] a. Mix β-cyclodextrin, silicon dioxide and water at a mass ratio of 1:5:3, soak for 2 hours, and dry the water at 80°C to obtain the third mixture;

[0081] B adds the expanded perlite of 40% of its quality in the third mixture in a, mixes evenly and gets final product;

[0082] (2) The preparation method of the nucleating agent is as follows: grind stone and anhydrite into powder according to the mass ratio of 1:2, and the particle size is 1.25mm, then add ferric chloride and copper sulfate and mix evenly, ferric chloride and sulfuric acid The total mass of copper is 1.5% of the total mass of stone and anhydrite;

[0083] (3) The preparation method of water reducing agent is specifically:

[0084] Step 1, the prenol polyoxyethylene ether of 95 parts by weight, the potassium persulfate of 1.5 parts by weight, t...

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Abstract

The invention discloses green high-performance concrete. The green high-performance concrete comprises water, cement, aggregates, water reducers, nucleating agents, gelatinization assistants, coal ash, water-quenched manganese residues, sulfonated lignin, calcium chloride, lignin, titanium fibers, hemicellulose, pectin, anhydrite and swelling agents. A preparation method of the gelatinization assistants specifically includes mixing beta-cyclodextrin with silicon dioxide and water, drying off moisture after soaking, adding expanded perlite, and evenly mixing to obtain the gelatinization assistants. A preparation method of the nucleating agents includes grinding stone and the anhydrite into powder with the grain diameter of 0.075-1.25mm, and adding ferric chloride and copper sulfate before even mixing. The green high-performance concrete has the advantages of capability of extending concrete pumping distance, high initial slump, low slump loss, high compressive strength, high breaking strength and capability of saving energy sources.

Description

technical field [0001] The invention relates to the field of building materials. More specifically, the present invention relates to a green high-performance concrete. Background technique [0002] Concrete is the most widely used building material in modern times. It has the advantages of abundant raw materials, low price, simple process, high strength and good durability. However, after the concrete materials are mixed, chemical reactions will occur over time, which will have a negative impact on the fluidity and slump loss of concrete. [0003] In concrete, the volume of aggregate accounts for more than 60%. Aggregate is an important component material in concrete to bear load, resist erosion and enhance the volume stability of concrete. Studies have shown that the performance of concrete is affected by the size of aggregate in construction. , such as the initial slump of concrete, slump retention performance and slump loss; and soil agglomeration or coating on the aggr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/16C04B14/48C04B24/38C04B24/42C04B103/44C04B103/30
CPCC04B14/48C04B28/16C04B40/0039C04B2103/302C04B2103/445C04B2111/00017C04B2201/50C04B7/00C04B14/06C04B18/12C04B14/02C04B22/143C04B22/12C04B22/142C04B18/08C04B18/144C04B24/18C04B22/124C04B24/24C04B24/383C04B24/38C04B22/148C04B14/185C04B24/165C04B24/045C04B24/04C04B24/00C04B24/023C04B24/16C04B22/062C04B24/085C04B24/42C04B24/122
Inventor 何克英黎星辰方洁彭秋棉
Owner GUANGXI SHENGTIAN CEMENT PROD CO LTD
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