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Modified asphalt concrete

A technology for modifying asphalt and concrete, applied in the field of building materials, can solve problems such as poor workability and influence, and achieve the effects of improving viscoelasticity and ductility, increasing specific surface area, and changing physical characteristics

Inactive Publication Date: 2016-11-09
安徽金丰新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after mixing concrete materials, chemical reactions will occur over time, which will have adverse effects on concrete fluidity, slump loss, workability, etc. Therefore, ready-mixed concrete needs to be delivered to the required construction site within the specified time , but also put forward higher requirements for the performance of concrete

Method used

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  • Modified asphalt concrete

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preparation example Construction

[0025] A preparation method of modified asphalt concrete includes:

[0026] (1) After mixing sand, crushed stone, hydrotalcite, coconut shell activated carbon, and slag powder, stir it evenly;

[0027] (2) Add gel material and modified asphalt to the mixture in (1), and mix well;

[0028] (3) Add admixtures and auxiliary agents to the mixture in (2), stir evenly, and let stand for 15-20 minutes;

[0029] (4) Add water to the mixture in (3) at a water-cement ratio of 0.436, stir for 3-4 hours, and cure for 10 days in a humid environment at 21°C to obtain the concrete of the present invention.

[0030] The performance test of concrete is as follows:

[0031]

[0032] Table 1

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Abstract

The invention discloses a modified asphalt concrete. The modified asphalt concrete is prepared from a binding material, sand, gravel, cocoanut active charcoal, superfine slag powder, waste rubber powder, modified asphalt, hydrotalcite, an additive, an adjuvant and a proper amount of water. The binding material can adsorb stone sand in mortar, a network structure can be formed after gel absorption, all the ingredients can be well bound under the situation of little water, and the situations of separation and water seepage can be reduced. The additive and the adjuvant are added into the concrete formula, the proportion of all the ingredients is adjusted so as to improve the comprehensive performance of the concrete, and the requirements of most buildings can be met. By preparing the modified asphalt concrete with the modified asphalt, the comprehensive performance of the concrete can be further improved, the compressive strength and the flexural strength are improved by 10% or above, the salt resistance and the seepage resistance of the concrete are further improved, development of micro-cracks inside the concrete can be impeded, and the concrete is reinforced and toughened.

Description

Technical field [0001] The invention relates to the field of building materials, in particular to a modified asphalt 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. Ready-mixed concrete is a type of concrete, which is composed of cement, aggregates, water, admixtures, mineral admixtures and other components mixed according to needs in a certain proportion in the mixing station after being measured and mixed, and sold, and The concrete mixture that is transported to the place of use within the specified time by a transport vehicle. Because on-site construction has a greater impact on the environment, ready-mixed concrete has received more and more attention. However, after the concrete materials are mixed, chemical reactions will occur over time, which will have adverse effects on the fluidity, slump loss, and ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/36C04B24/42
CPCC04B28/00C04B40/0039C04B2201/50C04B14/10C04B22/143C04B22/08C04B22/148C04B14/304C04B14/104C04B14/02C04B14/022C04B18/141C04B14/36C04B14/42C04B16/02C04B24/2623C04B24/281C04B14/08C04B20/008C04B24/045C04B24/38C04B2103/302C04B24/122C04B24/18C04B24/42C04B14/24C04B14/34C04B24/085C04B24/32C04B24/2611C04B24/2652C04B24/2676C04B24/34C04B24/04C04B22/062C04B22/0013C04B14/383C04B14/042C04B24/40C04B14/368C04B14/185C04B24/08C04B24/20C04B24/383C04B14/06C04B14/22
Inventor 周武
Owner 安徽金丰新型建材有限公司
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