关键词: 电解锰渣;免烧砖;水泥;性能

Abstract: When the aggregate amount was 20％, the molding pressure was 2 MPa, mixing water content was 25％, the effect cement addition on the properties of unburned brick of electrolytic manganese slag were been studied systematically .The results show that when the concent of cement is 20％, the compressive strength and flexural strength of electrolytic manganese brick are 10.21 MPa and 2.35 MPa after 7 d, and the compressive strength and flexural strength are 13.76 MPa and 2.74 MPa after 28 d, the volume density is 1.36 g/cm3 , the linear shrinkage rate is 1.13％, the water absorption rate 33. 32％, the saturation coefficient is 1 .47 , and there was little frost phenomenon .The strength could meet the national standard requirements of ordinary sintering bricks , other properties can meet the requirements of the national first-class products .

Key words: electrolytic manganese slag;unburned brick;cement;property