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Environment-friendly concrete

An environmentally friendly concrete and mixture technology, applied in the field of concrete, can solve the problems of reduced waterproof performance of concrete, lower waterproof performance, lower waterproof performance, etc., and achieve the effects of improving frost resistance, increasing strength and reducing porosity

Active Publication Date: 2019-11-08
东莞市建工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above technology, the chopped aramid fibers in the concrete are used to improve the heat storage and release efficiency of the concrete, and the specifications of the aramid fibers in the concrete are: d=0.15mm; L=5-8mm, although this The anti-cracking ability and anti-seepage ability of the standard aramid fiber used in the concrete material of the invention is more than 50% higher than that of the fine steel fiber, but the waterproof performance of the aramid fiber is reduced after a long time of use , resulting in a decrease in the waterproof performance of the concrete
When the concrete is used in areas with a lot of rain such as the south, the concrete layer formed by the concrete is prone to hollowing and falling off due to the decline in waterproof performance after long-term use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of environment-friendly concrete, its component and corresponding parts by weight are as shown in Table 1, and obtain through following steps preparation:

[0059] In the first step, cement, river sand, and crushed stones in corresponding parts by weight are mixed, and mechanically stirred for 20 minutes to stir evenly to obtain the first mixture.

[0060] In the second step, the fly ash, rosin soap, calcium lignosulfonate and aramid fiber in corresponding parts by weight are fully mixed, and uniformly stirred for 15 minutes to prepare the second mixture.

[0061] In the third step, the first mixture and the second mixture were uniformly mixed and stirred for 25 minutes to obtain the third mixture, which was prepared by mixing and stirring the corresponding parts by weight of chlorinated paraffin, epoxy resin emulsion and deionized water of corresponding parts by weight The fourth mixture, adding the fourth mixture to the third mixture while stirring, stirring an...

Embodiment 2

[0084] A kind of environment-friendly concrete, the difference with embodiment 1 is:

[0085] Its components and corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0086] In the first step, cement, river sand, and crushed stones in corresponding parts by weight are mixed, and mechanically stirred for 25 minutes to stir evenly to obtain the first mixture.

[0087] In the second step, the fly ash, rosin soap, calcium lignosulfonate and aramid fiber in corresponding parts by weight are fully mixed, and uniformly stirred for 20 minutes to prepare the second mixture.

[0088] In the third step, the first mixture and the second mixture were uniformly mixed and stirred for 30 minutes to obtain the third mixture, and the corresponding parts by weight of the epoxy resin emulsion and the deionized water of the corresponding parts by weight were mixed and stirred to obtain the fourth mixture, The fourth mixture was added into the third mixt...

Embodiment 3

[0104] A kind of environment-friendly concrete, the difference with embodiment 1 is:

[0105] Its components and corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0106] In the first step, cement, river sand, and crushed stones in corresponding parts by weight are mixed, and mechanically stirred for 30 minutes to stir evenly to obtain the first mixture.

[0107] In the second step, the fly ash, rosin soap, calcium lignosulfonate and aramid fibers in corresponding parts by weight are fully mixed and uniformly stirred for 25 minutes to prepare the second mixture.

[0108] In the third step, the first mixture and the second mixture were mixed uniformly and stirred for 40 minutes to obtain the third mixture, and the corresponding parts by weight of the epoxy resin emulsion and the deionized water of the corresponding parts by weight were mixed and stirred to obtain the fourth mixture, The fourth mixture was added into the third mi...

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Abstract

The invention relates to the technical field of concrete, in particular to environment-friendly concrete. The environment-friendly concrete comprises the following components: in parts by weight, 120-162 parts of cement, 80-100 parts of deionized water, 80-98 parts of crushed stone, 78-90 parts of river sand, 45-59 parts of fly ash, 25-55 parts of aramid fiber, 68-96 parts of an epoxy resin emulsion, 3-6 parts of chlorinated paraffin, 2-4 parts of rosin soap and 3-10 parts of calcium lignosulfonate, wherein the aramid fiber is modified aramid fiber. A preparation mehtod of the modified aramidfiber comprises the steps: (1) pre-treating aramid fiber, (2) performing waterproof treatment on the pretreated aramid fiber, and (3) baking the aramid fiber treated in the step (2) so as to obtain the modified aramid fiber. When the environment-friendly concrete is applied in areas with heavy rain, good waterproof performance can still be maintained for a long period of time.

Description

technical field [0001] The invention relates to the technical field of concrete, more specifically, it relates to an environment-friendly concrete. Background technique [0002] Concrete is an engineering composite material in which the aggregate is cemented into a whole by a cementitious material. The cementitious material is usually cement, and the aggregate is sand and stone, which are mixed with water in a certain proportion and obtained by stirring. As a very important building material, it is widely used in civil engineering. Ordinary concrete is neither an insulator nor a good conductor. Adding a certain amount of heat storage components such as inorganic salt crystals and carbon fibers to concrete can improve its heat storage performance, but the price of carbon fibers is relatively high, and its use in concrete will make the heat storage Hot concrete is more expensive. [0003] At present, in order to solve the above-mentioned problems, a heat storage concrete ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/10C04B16/06C04B111/27
CPCC04B20/1051C04B28/00C04B2111/27C04B14/02C04B14/068C04B18/08C04B16/0691C04B24/281C04B24/36C04B24/34C04B24/18C04B20/1037C04B20/1033
Inventor 谭国亮
Owner 东莞市建工集团有限公司
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