透水地坪由于存在大量的孔洞,易失水,干燥很快,养护非常重要.尤其是早期养护,避免透水地坪中水分大量蒸发。所以透水混凝土拆模时间比普通混凝土短,因而其侧面和边缘就会暴露于空气中,应用塑料薄膜或彩条布及时覆盖路面和侧面,来保证湿度和水泥充分水化!透水地坪应在浇注后1天开始洒水养护,淋水时不宜用压力水柱直冲混凝土表面,这样会带走一些水泥浆,造成一些较薄弱的部位,但可在常态的情况下直接从上往下浇水。透水地坪的浇水养护时间应不少于7天。
彩色透水混凝土地坪系统透水性混凝土的应用,其生态环境效应体现为:
(1)增加城市可透水、透气面积,加强地表与空气的热量和水分交换,调节城市气候,降低地表温度,有利于缓解城市热岛现象
(2)充分利用雨雪降水,增大地表相对湿度,补充城区日益枯竭的地下水资源,发挥透水性路基的蓄水池功能;改善城市地表植物和土壤微生物的生存条件和调整生态平衡。
(3)能够减轻降雨季节道路排水系统的负担,明显降低暴雨对城市水体的污染;
(4)吸收车辆行驶时产生的噪音,创造安静舒适的生活和交通环境,雨天防止路面积水和夜间反光。
(5)防止路面积水和夜间路面反光,冬天不会在路面形成黑冰(由霜雾形成的一层几乎看不见的薄冰,极危险),提高了车辆、行人的通行舒适性与安全性;
(6)大量的空隙能吸附城市污染物粉尘,减少扬尘污染。
(7)可以根据环境及功能需要设计图案,颜色,充分与周围环境相结合。
Due to the existence of a large number of holes, permeable floors are easy to lose water and dry quickly, so maintenance is very important. In particular, early maintenance can avoid a large amount of evaporation of water in permeable floors.Therefore, pervious concrete mold removal time is shorter than ordinary concrete, so its side and edge will be exposed to the air, the application of plastic film or color strip cloth to timely cover the road and side, to ensure the humidity and cement fully hydration!The permeable floor should be watered one day after pouring. It is not advisable to use the pressure water column to directly flush the concrete surface, which will take away some cement slurry and cause some weak parts. However, it can be watered directly from the top down under normal conditions.The watering and maintenance time of permeable floor should be no less than 7 days.
The application of color pervious concrete floor system has the following ecological and environmental effects:
(1) Increasing the area of urban water permeability and air permeability, strengthening the heat and water exchange between the surface and the air, adjusting the urban climate, and lowering the surface temperature are conducive to alleviating the urban heat island phenomenon
(2) Make full use of rain, snow and precipitation, increase the surface relative humidity, supplement the increasingly depleted groundwater resources in the urban area, and play the function of pervious subgrade reservoir;Improve the living conditions of urban surface plants and soil microorganisms and adjust ecological balance.
(3) It can reduce the burden of road drainage system in rainy season and significantly reduce the pollution of urban water body by rainstorm;
(4) To absorb the noise generated by vehicles, create a quiet and comfortable living and traffic environment, and prevent road surface water and night reflection in rainy days.
(5) Prevent road surface water and reflective surface at night, which will not form black ice on the road surface in winter (a layer of almost invisible thin ice formed by frost fog is extremely dangerous), thus improving the comfort and safety of vehicles and pedestrians;
(6) A large number of voids can absorb urban pollutant dust and reduce dust pollution.
(7) Patterns and colors can be designed according to the environment and functional requirements to fully integrate with the surrounding environment.