A kind of high-performance permeable concrete rapid repair material and its preparation method and application
A permeable concrete, high-performance technology, applied to cohesive pavement paved on site, roads, gutters/curbs, etc., can solve the problems of slow strength development process and low early strength, so as to shorten the traffic blockage time and significantly The effect of social and economic benefits
Active Publication Date: 2022-05-27
纳思同无锡科技发展有限公司
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Problems solved by technology
Overcome technical problems such as low early strength and slow strength development process of existing permeable concrete materials, and meet the technical needs of rapid repair of heavy-duty permeable concrete roads
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1-3
[0041] (1) take by weighing raw material according to table 1 content:
[0042] Table 1 Raw material ratio (mass fraction) of Examples 1-3
[0043]
[0044] (2) Calcium chloride, sodium sulfate, sodium nitrite, triethanolamine, aluminum oxide and 2 parts of water are mixed and ultrasonically stirred for 30min to obtain material A. Next, mix metakaolin, ultrafine mineral powder, sodium silicate, calcium carbonate whisker, nano calcium carbonate and balance water, and uniformly stir for 10 minutes to obtain material B. Finally, fine quartz sand and stones were added to material A and material B, mixed and uniformly stirred for 3 minutes to obtain each group of example materials. According to the standard DB11 / T775-2010 "Technical Specifications for Pervious Concrete Pavement", the compressive strength and water permeability coefficient of the material were tested, and the results are shown in Table 2.
[0045] Table 2 Test results of compressive strength and water permeabil...
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Abstract
The invention relates to the technical field of concrete pavement repair, in particular to a high-performance permeable concrete rapid repair material and its preparation method and application. The high-performance permeable concrete rapid repair material raw materials include: metakaolin, mineral powder, quartz sand, stones, nano-calcium carbonate, calcium carbonate whiskers, sodium silicate, calcium chloride, sodium sulfate, sodium nitrite, triethanolamine, Aluminum oxide, water; The present invention also provides the method for road repairing of the above-mentioned repairing material, including carrying out base surface treatment on the road surface to be repaired; spraying epoxy vinyl resin and curing agent mixture on the surface of the repaired road surface; The permeable concrete rapid repair material is divided into two parts, A and B, and the A part is mixed with the accelerator to fill in the inner layer of the repaired road surface, and the B part is filled in the upper layer of the A part filling material for curing; the invention overcomes the early strength of the existing permeable concrete materials Low technical problems such as low strength and slow development process meet the technical needs of rapid repair of heavy-duty permeable concrete roads.
Description
technical field [0001] The invention relates to the technical field of concrete pavement repair, in particular to a high-performance permeable concrete quick repair material and a preparation method and application thereof. Background technique [0002] The wide application of permeable concrete is an important part of the construction of my country's sponge city. In recent years, with the increasing demand for high-grade permeable roads on municipal roads, bus stations, large bridges and tunnels, high-performance permeable concrete with a compressive strength grade higher than C40 has received more and more attention and application. . From the point of view of the life cycle of the road, any road will inevitably suffer from fatigue damage and damage during the service process. In order to minimize the impact on traffic, it is extremely important to repair the road quickly. However, unlike the quick repair of ordinary concrete roads, the following three basic requirements...
Claims
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IPC IPC(8): C04B28/26E01C7/14E01C11/22C04B111/72
CPCC04B28/26E01C7/147E01C11/226C04B2111/00284C04B2111/00008C04B2111/72C04B2201/50C04B18/08C04B14/106C04B18/12C04B14/06C04B14/28C04B14/383C04B22/124C04B22/147C04B22/085C04B24/122C04B14/303
Inventor 张聪蔡景明李吴刚张雅婷张勇张建鲁晓源
Owner 纳思同无锡科技发展有限公司