Bearable geopolymer base water storage road
A geopolymer and base layer technology, applied in roads, roads, cement production and other directions, can solve the problems of complex construction process, many types of renovation, and cannot bear heavy loads, etc., and achieve simple construction process, long service life, and improved chemical resistance. Corrosive effect
Inactive Publication Date: 2020-11-03
曹容川
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Problems solved by technology
The purpose of the invention is to solve the problems that the roads in the traditional sponge city model cannot store water, have many types of transformation, complex construction technology, and cannot bear heavy loads.
Method used
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Embodiment Construction
[0033] Such as figure 1 , structural diagram of load-bearing geopolymer base water storage road, including permeable asphalt layer, permeable concrete layer, geopolymer aquifer, cement concrete lower seal layer from top to bottom; there is cement concrete edge seal at the edge of the road structure There is a drainage valve at the bottom of the cement concrete side seal layer.
[0034] The permeable asphalt layer, the permeable concrete layer, the cement concrete lower seal layer, the cement concrete side seal layer, and the drainage valve all have mature technologies, and will not be repeated here.
[0035] The construction process of the geopolymer aquifer is as follows (taking metakaolin as an example):
[0036] 1. Prepare the materials and calculate the dosage. Use metakaolin (53% Si0 2 , 43.8% Al 2 o 3 ) as aluminum-silicon oxide; select analytically pure (purity ≥ 96%) NaOH particles, 2.3 modulus liquid sodium silicate, and a mixed solution of water as an alkali ac...
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Abstract
The invention provides a novel road concept, namely a bearable water storage road (a bearable geopolymer base water storage road), which is different from the current traditional sponge city mode. Theroad structure comprises a permeable asphalt layer, a permeable concrete layer, a geopolymer water storage layer and a cement concrete lower sealing layer from top to bottom. A cement concrete edge sealing layer is arranged on the edge of the road structure, and a drainage valve is arranged at the bottom of the cement concrete edge sealing layer. The gel material of the geopolymer water storage layer is geopolymer gel, and the aggregate is open-graded coarse aggregate; the geopolymer gel is prepared by mixing aluminum-silicon oxide (Si2O5 and Al2O2) and an alkali activator, and the molar ratio of elements to compounds in the gel is as follows: Si / Al = 1.8-2.5, Al / Na = 0.8-1.2, and H2O / Na2O = 13.5-17.0; the compressive strength of the geopolymer water storage layer meets the standards of expressways and first-grade roadbase layers; the water storage road can bear rainstorm (50mm / d-100mm / d) rainfall for 9-17 hours under the condition that a municipal drainage system is completely paralyzed.
Description
technical field [0001] This invention proposes a new road concept different from the current traditional sponge city model---a load-bearing water storage road (the load-bearing standard of the grassroots level meets the strength requirements of China's expressways and first-class roads), which can be used when the municipal drainage system is completely paralyzed. Withstand heavy rain (50mm / d~100mm / d) for 9~17 hours of rainfall. The core point is to use geopolymer instead of cement as the gel material of the water storage road base. Background technique [0002] At present, the main models of sponge cities include green roofs, bioretention (wetland gardens, etc.), and permeable pavements. Green roofs are mainly used in high-density construction cities, and are greatly affected by floors; bioretention mostly occurs in the form of wetland gardens and sunken green spaces, which is very difficult for old urban reconstruction; permeable pavements are mostly non-load-bearing side...
Claims
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IPC IPC(8): E01C11/22E01C7/32E01C11/24C04B28/00C04B38/00C04B111/20
CPCC04B28/006C04B38/0041C04B2111/00612C04B2111/20E01C7/325E01C11/226E01C11/24C04B24/42C04B22/002C04B12/04C04B22/062C04B14/106C04B14/02Y02P40/10
Inventor 曹容川方正
Owner 曹容川