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Early strength concrete with super retarding effect, and preparation process thereof

A preparation process, concrete technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems that concrete cannot adapt to construction conditions, achieve the effect of improving anti-corrosion effect, preventing corrosion, and improving adhesion effect

Inactive Publication Date: 2020-05-08
杭州三中新型建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The initial setting time of ordinary concrete is about 6-8 hours, so ordinary concrete cannot adapt to this construction condition.

Method used

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  • Early strength concrete with super retarding effect, and preparation process thereof
  • Early strength concrete with super retarding effect, and preparation process thereof
  • Early strength concrete with super retarding effect, and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] The difference between embodiment 10-13 and embodiment 1 is that the super retarder comprises the following raw materials in weight percent:

[0078]

[0079] The difference between embodiments 14-17 and embodiment 1 is that the early strength agent comprises the following raw materials in weight percentage:

[0080]

[0081] The difference between embodiment 18-21 and embodiment 1 is that the active admixture comprises the following raw materials in weight percent:

[0082]

[0083]

[0084] The difference between Embodiment 22-25 and Embodiment 1 is that the coating material comprises the following raw materials in weight percentage:

[0085]

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PUM

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Abstract

The invention relates to an early strength concrete with a super retarding effect, and a preparation process thereof, and relates to the technical field of concrete preparation. The early strength concrete is prepared from, by weight, 180-200 parts of ordinary Portland cement, 1180-1220 parts of coarse aggregate, 600-640 parts of fine aggregate, 240-260 parts of an active admixture, 6-10 parts ofa polycarboxylate superplasticizer, 8-12 parts of a super retarder, 4-8 parts of an early strength agent and 180-200 parts of water. Addition of the super retarder and the early strength agent prolongs the initial setting time of the concrete and improves the early strength of the concrete.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to an early-strength concrete with a super retarding effect and a preparation process thereof. Background technique [0002] Concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in appropriate proportions, uniformly stirred, compacted and cured. [0003] Existing concrete is usually poured and formed by mixing and stirring aggregates, cementitious materials and various additives. In some large-scale bridge projects, in order to improve the bearing capacity of single piles, the length and cross-section of the piles are large, the amount of concrete poured into the single piles is large, and the pouring time is long, especially in hot summer. The initial setting time of concrete is greatly extended to ensure a successful pouring. The init...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B41/67C09D163/00C09D5/08C09D7/63
CPCC04B28/04C04B41/5015C04B41/67C08K2003/324C08K2201/014C09D5/08C09D163/00C09D7/63C04B2103/302C04B2103/22C04B2103/10C04B18/08C04B18/141C04B14/06C04B24/20C04B24/38C04B16/0633C04B14/48C04B14/022C04B24/2652C04B14/02C08K5/5425C08K3/32C04B41/4853C04B41/46C04B41/4535
Inventor 刘臻一陈程
Owner 杭州三中新型建材科技有限公司
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