高强透水性混凝土材料试验研究

透水性混凝土材料具有绿色、环保等特点，可应用于人行道、停车场、透水性路面、土工结构排水系统反滤层等，有很好的发展前景，但因强度低影响了其应用范围。本文对透水性混凝土材料进行了试验研究，讨论了影响透水性混凝土材料强度和渗透性的因素，提出了增强透水性混凝土材料强度的措施。研究认为。水灰比、粗骨料的种类和级配、矿物掺合料以及其它增强材料是影响透水性混凝土材料强度的主要原因。并对这些因素对强度的影响进行了定量分析。试验还对透水性混凝土材料的渗透性进行了测试。根据试验结果推荐的原材料、配比和试验方法，可以得到强度达到30MPa，渗透性在1mm／s以上的透水性混凝土。满足一般工程需要。研究成果已经应用干铁道部某项目并取得成功。

The experimental study on the high-strength porous concrete

Porous concrete has the properties of environment friendly,it can be used to pavement,part,civil structure,water draining system and so on,but the low compressive strength is its deadly weakneww.The experimental study on the porous concrete was carried out.In fluencial factors on strength and permeability was discussed.Promoting method to strength was proposed.Main factors include water binder ratio,types of coo-rse aggregate,mineral admixture and other strengthening materials.It tests the permeablility of porous concrete,the result shows that a compressie strength of 30MPa or greater while the water permeability of more than 1mm/sec can be obtained.