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A construction method and technology for municipal roads, applied in the directions of roads, roads, buildings, etc., can solve problems such as the decline of soil structure strength, the decline of supporting road stability, road collapse, etc., to achieve enhanced frost resistance, reduced impact, and less icing Effect
Active Publication Date: 2019-12-03
广东金建建筑股份有限公司
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[0003] Roads usually use concrete or asphalt as the road surface. Both the general concrete road surface and the asphalt road surface will seep water. During heavy rain, a large amount of water may seep into the bottom of the road. The bottom of the road is usually a soil foundation with compacted soil. It may lead to excessive water soaking of the soil under the road, resulting in a decrease in the structural strength of the soil, resulting in a decrease in the stability of the supporting road, which may lead to road collapse, so there is still room for improvement
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Embodiment 1
[0072] A kind of concrete slurry, the preparation method of concrete slurry is as follows:
[0073] a. Add 100kg of Portland cement, 90kg of water, and 11kg of water reducing agent into the stirring tank at a speed of 60r / min, and stir for 5min to form cement slurry;
[0074] b. Add 5kg of silane coupling agent and 100kg of polyurethane adhesive to the cement slurry at a speed of 60r / min and stir for 5min to form a premix;
[0075] c. Add 300kg of coarse aggregate and 150kg of fine aggregate to the premix, rotate at 45r / min, and stir for 8min to form concrete slurry.
Embodiment 2
[0077] A kind of concrete slurry, the preparation method of concrete slurry is as follows:
[0078] a. Add 100kg of Portland cement, 100kg of water, and 10kg of water reducing agent into the stirring tank at a speed of 60r / min, and stir for 5min to form cement slurry;
[0079] b. Add 7.5kg of silane coupling agent and 125kg of polyurethane adhesive to the cement slurry at a speed of 60r / min and stir for 5min to form a premix;
[0080] c. Add 350kg of coarse aggregate and 175kg of fine aggregate to the premix, rotate at 45r / min, and stir for 8min to form concrete slurry.
Embodiment 3
[0082] A kind of concrete slurry, the preparation method of concrete slurry is as follows:
[0083] a. Add 100kg of Portland cement, 110kg of water, and 9kg of water reducing agent into the stirring tank at a speed of 60r / min, and stir for 5min to form cement slurry;
[0084] b. Add 10kg of silane coupling agent and 150kg of polyurethane adhesive to the cement slurry at a speed of 60r / min and stir for 5min to form a premix;
[0085] c. Add 400kg of coarse aggregate and 200kg of fine aggregate to the premix, rotate at 45r / min, and stir for 8min to form concrete slurry.
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Abstract
The invention relates to the technical field of municipal roads, and provides a municipal road construction method which aims to solve the problem that road collapse is possibly caused as structural strength of soil is reduced if soil below a road is soaked excessively. According to the technical scheme, the municipal road construction method comprises the following steps: S1, excavating foundation pits; S2, laying a base layer; S3, laying a cushion layer; S4, laying a surface layer: S41, laying a polyurethane surface layer; S42, laying an asphalt surface layer; and S43, laying a concrete surface layer, wherein the concrete surface layer is formed by concrete slurry pouring, and the concrete slurry comprises the following components in parts by mass: 100 parts of silicate cement, 300-400 parts of coarse aggregates, 150-200 parts of fine aggregates, 100-150 parts of an polyurethane adhesive, 5-10 parts of a silane coupling agent and 90-110 parts of water. The surface layer comprises thepolyurethane surface layer, the asphalt surface layer and the concrete surface layer, and the polyurethane surface layer is utilized to provide relatively good water resistance, so that water on theroad is not liable to penetrate into the cushion layer, influences on a bottom soil base of the road are reduced, the bottom soil structure of the road is kept stable, and the road is relatively stable and is not liable to collapse.
Description
technical field [0001] The invention relates to the technical field of municipal roads, in particular to a municipal road construction method. Background technique [0002] Municipal roads are one of the components of urban transportation. With the development of cities, there are more and more roads, and the area covered by roads is getting larger and larger. [0003] Roads usually use concrete or asphalt as the road surface. Both the general concrete road surface and the asphalt road surface will seep water. During heavy rain, a large amount of water may seep into the bottom of the road. The bottom of the road is usually a soil foundation with compacted soil. It may lead to excessive water soaking of the soil under the road, resulting in a decrease in the structural strength of the soil, resulting in a decrease in the stability of the supporting road, which may lead to road collapse, so there is still room for improvement. Contents of the invention [0004] Aiming at th...
Claims
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Application Information
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