利用工业固体废弃物制备全固废无熟料水泥的试验研究  

Experimental Study on the Preparation of Full Solid Waste Clinker Free Cement Using Industrial Solid Waste

作　　者：许凯军 孙景卫 邢崇恩 董洪山 张洪博 李国爽 李娜 任晓花 Xu Kaijun;Sun Jingwei;Xing Chongen;Dong Hongshan;Zhang Hongbo;Li Guoshuang;Li Na;Ren Xiaohua(Tangshan Zhongzhan Testing Service Co.,Ltd.,Tangshan 063000,China;Tangshan Zhongtao Jiyuan Engineering Design Co.,Ltd.,Tangshan 063000,China)

机构地区：[1]唐山中扩检测服务有限责任公司,河北唐山063000 [2]唐山中陶纪元工程设计有限公司,河北唐山063000

出　　处：《山东化工》2024年第4期37-42,共6页Shandong Chemical Industry

摘　　要：采用钢渣、矿渣、三级粉煤灰、脱硫石膏和碱渣为原料制备全固废无熟料水泥,通过调整各个物料之间的比例,研究其凝结时间和抗压强度。研究发现:当钢渣掺入质量为30%时,28 d胶砂强度可达39.2 MPa;用10%的粉煤灰替代矿渣,28 d胶砂强度有少量降低,其值为36.1 MPa。加入Na_(2)SiO_(3)对全固废无熟料水泥凝结时间具有较好的调节效果,当Na_(2)SiO_(3)掺入质量为0.6%时,全固废无熟料水泥的初凝时间为145 min,终凝时间为239 min,与普通硅酸盐水泥相近。同时,Na_(2)SiO_(3)对全固废无熟料水泥的强度具有较好的激发效果,当Na_(2)SiO_(3)掺入质量为0.6%时,其28 d胶砂强度增大到49.5 MPa。In this paper,full solid waste clinker free cement was prepared using steel slag,slag,tertiary fly ash,desulfurization gypsum,and soda residue as raw materials.The setting time and compressive strength were studied by adjusting the proportion of raw materials.The results show that when the dosage of steel slag was 30%,the compressive strength of mortar can reach to 39.2 MPa at 28 d.When replacing slag with 10% fly ash,the compressive strength of 28 d of mortar decrease slightly,and the value was 36.1 MPa.The setting time of full solid waste clinker free cement was improved by adding the Na_(2)SiO_(3).When the content of Na_(2)SiO_(3) was 0.6%,the initial setting of full solid waste without clinker cement was 145 min,and the final setting was 239 min,which was similar to ordinary portland cement.Moreover,Na_(2)SiO_(3) has a good stimulating effect on the strength of full solid waste without clinker cement.When the content of Na_(2)SiO_(3) was 0.6%,its 28 d mortar strength can reach 49.5 MPa.

关 键 词：钢渣 碱渣 工业固废 无熟料水泥 

分 类 号：X705[环境科学与工程—环境工程] TU525[建筑科学—建筑技术科学]