- 目录
- 新型墙体材料与施工
- 首页
高炉矿渣制备免烧砖强度的试验研究
作者：高健，王晓磊，李军，李彦苍，刘历波
（河北工程大学 土木工程学院，河北 邯郸 056038）
摘要：为了研究高炉矿渣在免烧砖中的应用，将不同配比的矿渣、粉煤灰、水泥、石灰等物料搅拌、压制、养护制成免烧砖。通过正交试验研究了矿渣、水泥和石灰掺量对免烧砖抗压强度的影响，并研究了成型压力对免烧砖强度的影响。试验结果表明：当m（矿渣）∶m（粉煤灰）∶m（水泥）∶m（石灰）=11∶5∶2∶2，水固比为0.15，成型压力为20 MPa时，所制备的免烧砖强度JC/T 422—2007《非烧结垃圾尾矿砖》规定的MU20级免烧砖的性能要求。
关键词：高炉矿渣；正交试验；抗压强度；水化反应
中图分类号：TU522.1+9 文献标识码：A 文章编号：1001-702X（2022）11-0165-04
Experimental study on preparation of baking-free bricks from blast furnace slag
GAO Jian，WANG Xiaolei，LI Jun，LI Yancang，LIU Libo
（College of Civil Engineering，Hebei University of Engineering，Handan 056038，China）
Abstract：In order to study the application of blast furnace slag in baking-free brick，baking-free brick was made by mixing，pressing and curing different proportions of slag，fly ash，cement，lime and other materials. The effects of slag，cement and lime on the compressive strength of baking-free brick were studied by orthogonal test，and the effects of molding pressure on the strength of brick were studied by external conditions. The experimental results show that the strength of brick samples prepared under the conditions of mass fraction of slag，fly ash，cement and lime 11∶5∶2∶2，water-solid ratio 0.15 and forming pressure 20 MPa can meet the performance requirements of Mu20 non fired brick as specified in standard JC/T 422—2007"Non-fired rubbish gangue brick".
Key words：blast furnace slag，orthogonal test，compressive strength，hydration reaction