Air-entrained concrete technology as an effective tool for increasing the limits of brick powder percentage in blended Portland cement binders

作者：Kulovana Tereza^*; Vejmelkova Eva; Keppert Martin; Rovnanikova Pavia; Ondracek Michal; Kersner Zbynek; Cerny Robert

来源：Cement, Wapno, Beton, 2015, 20(1): 11-+.

• air-entrained concrete
• waste brick powder
• mechanical parameters
• hydric properties
• thermal properties
• durability

The complex experimental tests of the air-entrained concrete (AEC) properties, containing waste brick powder as supplementary cementing material are presented. Contrary to many previous studies, concerning of different types of concrete based on the Portland cement with ceramic powders as mineral addition, the limit for the effective use of brick powder is found to be much higher than the often reported 20% of mass of the binder. For a majority of practical applications, the designed AEC mix allows using blended cements containing up to 60% of fine red-brick ceramics without any significant worsening of the most engineering properties.

• 出版日期2015-2