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High-performance concrete formula

A high-performance concrete and formula technology, applied in the field of construction, can solve problems such as poor deformation capacity, low tensile strength, and poor durability, and achieve the effects of improving compactness, increasing strength, and reducing water-cement ratio

Inactive Publication Date: 2018-12-07
WENZHOU POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the requirements for the use of concrete are getting higher and higher, the concrete in the traditional field can no longer meet the requirements, and the existing concrete has poor durability, low tensile strength, poor deformation ability under tension, and easy cracking. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The present invention proposes a high-performance concrete formula, the raw materials of which are as follows by weight: 80 parts of cement, 30 parts of gravel, 25 parts of crushed stone, 25 parts of gypsum powder, 16 parts of mineral admixture, and 12 parts of fine steel fiber , 12 parts of silicate, 8 parts of sodium tripolyphosphate, 8 parts of water reducer, 5 parts of stabilizer, 5 parts of antifreeze, and 12 parts of admixture.

[0020] The present invention also provides a kind of preparation technology of high-performance concrete, comprises the steps:

[0021] S1. Select the above raw materials in proportion, put them in the mixer, and then mix them at 30 degrees Celsius for 5 minutes. After completion, add an appropriate amount of warm water to them, and mix them again. For 20 minutes, the specific temperature of the temperature needs to be kept between 40-50 degrees Celsius. After it is completely mixed, the high-performance concrete formula can be obtained. ...

Embodiment 2

[0025] The present invention proposes a high-performance concrete formula, whose raw materials are formulated as follows by weight: 85 parts of cement, 33 parts of gravel, 28 parts of crushed stone, 28 parts of gypsum powder, 18 parts of mineral admixture, and 13 parts of fine steel fiber , 13 parts of silicate, 9 parts of sodium tripolyphosphate, 9 parts of water reducer, 6 parts of stabilizer, 6 parts of antifreeze, and 13 parts of admixture.

[0026] The present invention also provides a kind of preparation technology of high-performance concrete, comprises the steps:

[0027] S1. Select the above-mentioned raw materials in proportion, put them in the mixer, and then mix and stir them under the condition of 33 degrees Celsius, and the stirring time is 6 minutes. After completion, add an appropriate amount of warm water to it, and mix them again. 23 minutes, the specific temperature of the temperature needs to be kept between 40-50 degrees Celsius, and after it is completely...

Embodiment 3

[0031] The present invention proposes a high-performance concrete formula, and its raw material formula is as follows by weight: 90 parts of cement, 35 parts of gravel, 30 parts of crushed stone, 30 parts of gypsum powder, 20 parts of mineral admixture, and 14 parts of fine steel fiber , 14 parts of silicate, 10 parts of sodium tripolyphosphate, 10 parts of water reducer, 7 parts of stabilizer, 7 parts of antifreeze, and 14 parts of admixture.

[0032] The present invention also provides a kind of preparation technology of high-performance concrete, comprises the steps:

[0033] S1. Select the above raw materials in proportion, put them in the mixer, and then mix them at 35 degrees Celsius for 7 minutes. After completion, add an appropriate amount of warm water to them, and mix them again. 27 minutes, the specific temperature of the temperature needs to be kept between 40-50 degrees Celsius, and after it is completely mixed, the high-performance concrete formula can be obtaine...

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PUM

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Abstract

The invention discloses a high-performance concrete formula which comprises the following raw materials in parts by weight: 80-100 parts of cement, 30-40 parts of sand, 25-35 parts of gravel, 25-35 parts of gypsum powder, 16-24 parts of mineral admixture, 12-16 parts of fine steel fiber, 12-16 parts of silicate, 8-12 parts of sodium tripolyphosphate, 8-12 parts of a water reducer, 5-9 parts of a stabilizer, 5-9 parts of an anti-freezing agent and 12-16 parts of additive. The invention also provides a preparation process for the high-performance concrete formula. The high-performance concrete is capable of guaranteeing the normal use under a cold condition. The strength, anti-permeability and resistance to chemical corrosion of concrete are promoted, so that the durability of the concrete is promoted and the requirement of modern development can be met.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a high-performance concrete formula. Background technique [0002] Concrete is one of the most important civil engineering materials today. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary, prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also an important material. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/14C04B7/00C04B14/06C04B18/12C04B14/48C04B14/04C04B22/16C04B2103/302C04B2103/60C04B2103/601C04B2103/0068
Inventor 吴志堂
Owner WENZHOU POLYTECHNIC