陶粒多孔混凝土的制备及其性能试验研究

Study on preparat ion and tests of propert ies of ceramist porous concrete

利用粉煤灰陶粒制备多孔混凝土，并进行抗压强度、孔隙率以及pH值等性能试验。结果表明：水灰比为0．27时，多孔混凝土可以获得较好的抗压强度和孔隙率，pH值良好；ZS-2型生态混凝土外加剂可以有效控制混凝土的碱环境。制备的多孔混凝土强度5～6MPa、孔隙率在25％以上、pH值在10左右，满足水生植物生长需要。

Fly ash ceramist was used to prepare the porous concrete.The compressive strength,porosity and pH value of concrete haved been tested.The results of the study shows that when water cement ratio is 0.27, the porous concrete can has good compressive strength and porosity and the pH value is good too.The alkali environment of porous concrete can be conctrolled effectively by the ZS-2 admixture.The porous concrete can meet the growth needs of aquatic plants.