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全苏房屋建筑研究院会同钢筋混凝土科学研究所研究了采用黄铁矿灰渣配制彩色混凝土制品的配方和工艺。在制作时,同时采用了复合外加剂,对制品采用压制成型和湿热处理。试验采用500号硅酸盐水泥、黄铁矿灰渣(不含其它杂质,成分见表1)、细度模数1.83的石英质河砂、中性引气树脂 CHB 和超塑化剂 C-3。配合比可保证混凝土级别在 B30(抗压强度40兆帕和抗拉强度在5兆帕),拌合物的流动度指定在1～2厘米。
The All-Suzhou Housing and Construction Research Institute, together with the Reinforced Concrete Research Institute, studied the formula and technology for the preparation of colored concrete products using pyrite ash. At the time of production, a composite admixture was used at the same time, and the product was subjected to compression molding and wet heat treatment. The test uses No.500 portland cement, pyrite ash (with no other impurities, the composition is shown in Table 1), quartz sand with a fineness modulus of 1.83, neutral air-entraining resin CHB and superplasticizer C- 3. The mix ratio can guarantee the concrete grade at B30 (compressive strength 40 MPa and tensile strength at 5 MPa), and the blend fluidity is specified at 1 to 2 cm.