Abstract: Based on the experiment factors of gravel, cement, sand, SR-3 and water, and according to prepare the filter concrete samples by laboratory test, the influence of compressive strength,the porosity and pH on filter concrete is studied with the uniform design of 4 factors and 5 levels.The range of filter concrete proportion for stream governance is obtained by the analysis of contrast experiment.The proportion are 1546-1578 kg/m3, 250-280 kg/m3, 80-100 kg/m3, 4.7-5.5 L/m3, 72.5-109.2 L/m3, for gravel, cement, sand, SR-3 and water respectively, which can provide reference value for actual engineering of eco-concrete slope.

Key words: filter concrete;uniform design;slope protection;proportion