A cleanable permeable hollow curb that accepts runoff
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A curb and clean technology, applied in the direction of gutters/curbs, roads, roads, etc., can solve problems such as increasing maintenance costs, affecting driving safety, lowering groundwater levels, etc., to slow down urban floods and avoid waterlogging on roads , The effect of reducing maintenance costs
Active Publication Date: 2020-11-24
TIANJIN RES INST OF BUILDING SCI
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Problems solved by technology
However, while the traditional curb stone divides the area, it hinders the normal drainage of the road, resulting in serious water accumulation on the road, especially in rainy weather in the south or concentrated rainfall in the north, which can easily cause water accumulation on the road in rainy days and affect driving safety.
With the increase of urban hardened ground, rainfall is directly discharged into the drainage pipe network, which cannot effectively replenish groundwater, and urban green spaces also need special watering and irrigation
Not only can urban water resources not be fully utilized, resulting in a large waste of rainwater, but also need to extract groundwater resources to irrigate plants, increasing maintenance costs, reducing groundwater levels, causing great waste and environmental problems
Method used
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Embodiment 1
[0020] The material with water permeability is made by the following method: 6-mesh quartz sand with a mass ratio of 0.7:0.2:0.05:0.1:0.02:0.04, ordinary Portland cement, silica fume, fly ash, calcium nitrate and pigment , water-cement ratio=0.3, polycarboxylate superplasticizer dosage is 4% of water, mix evenly, after pouring into the mold, smear sodium silicate aqueous solution with a mass concentration of 20% on the outer surface, penetrate to the inner surface, Drying; then apply a potassium carbonate aqueous solution with a mass concentration of 20%, penetrate to the inner surface, and then apply a layer of nano-titanium dioxide powder.
Embodiment 2
[0022] The material with water-permeable function is made by the following method: 4-mesh quartz sand with a mass ratio of 0.6:0.25:0.01:0.2:0.005:0.08, ordinary Portland cement, silica fume, fly ash, calcium nitrate and pigment , water-cement ratio=0.3, polycarboxylate superplasticizer dosage is 5% of water, mix evenly, after pouring into the mold, smear sodium silicate aqueous solution with a mass concentration of 2% on the outer surface, penetrate to the inner surface, Drying; then apply a potassium carbonate aqueous solution with a mass concentration of 2%, penetrate to the inner surface, and then apply a layer of nano-titanium dioxide powder.
Embodiment 3
[0024] The material with water permeability is made by the following method: 6-mesh quartz sand with a mass ratio of 0.8:0.1:0.1:0.05:0.04, ordinary Portland cement, silica fume, fly ash and calcium nitrate, the water-cement ratio =0.4, the dosage of polycarboxylate superplasticizer is 2% of water, mix evenly, after pouring into the mold, apply sodium silicate aqueous solution with a mass concentration of 40% on the outer surface, penetrate to the inner surface, and dry; then apply An aqueous solution of potassium carbonate with a mass concentration of 40% penetrates into the inner surface, and then a layer of nano-titanium dioxide powder is applied.
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Abstract
The invention discloses a cleanable water-permeable hollow kerb for receiving runoff. The kerb comprises a bottom wall 1, a left wall 3, a right wall 4, a front wall 5 and a rear wall 6, a convex block 7 is arranged on the inner surface of the upper parts of the front wall and the rear wall, a top wall 2 and the convex block are movably connected, the bottom wall, the left wall, the right wall, the top wall, the lower part of the front wall and the upper part of the rear wall are separately prepared from concrete, the upper part of the front wall is prepared from a material with a water-permeable function, and the lower part of the rear wall is prepared from a material with a water seepage function. Compared with a traditional kerb, the cleanable water-permeable hollow kerb for receiving the runoff provided by the invention can effectively absorb runoff rainwater formed by a road, avoid water accumulation of the road, slow down urban flood disasters, can supplement groundwater resources, provide moisture for green plants grown on two sides of the road, and reduce maintenance costs; and meanwhile a flushable structure is designed, so that backwashing of a high-pressure water gun canbe facilitated, the service life of the kerb can be prolonged, and the costs are reduced.
Description
technical field [0001] The invention relates to the technical field of road construction, in particular to a roadside building accessory capable of collecting and absorbing runoff rainwater from a highway, and in particular to a cleanable and permeable curbstone carrying runoff. [0002] technical background [0003] Curbstone is a kind of road edge building accessory that is often used in the road construction process. It is generally used as a strip stone set on the edge of the road surface and separated from other structural belts. It can also stabilize the roadbed and maintain driving safety. It is widely used in road construction process. However, while the traditional curb divides the area, it hinders the normal drainage of the road and leads to serious water accumulation on the road. Especially in rainy weather in the south or concentrated rainfall in the north, it is very easy to cause water accumulation on the road in rainy days, which affects driving safety. With t...
Claims
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Application Information
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