Preparation of high performance concrete with molybdenum tailings of Shangluo

Cui Xiaowei; Di Yanqing; Liu Xuan; Nan Ning; Zhou Chunsheng

doi:10.3969/j.issn.1000-6532.2017.04.023

2017 No. 4

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Cui Xiaowei, Di Yanqing, Liu Xuan, Nan Ning, Zhou Chunsheng. Preparation of high performance concrete with molybdenum tailings of Shangluo[J]. Multipurpose Utilization of Mineral Resources, 2017, (4): 102-106. doi: 10.3969/j.issn.1000-6532.2017.04.023

Citation:

Cui Xiaowei, Di Yanqing, Liu Xuan, Nan Ning, Zhou Chunsheng. Preparation of high performance concrete with molybdenum tailings of Shangluo[J]. Multipurpose Utilization of Mineral Resources, 2017, (4): 102-106. doi: 10.3969/j.issn.1000-6532.2017.04.023

Preparation of high performance concrete with molybdenum tailings of Shangluo

Publish Date: 01 August 2017

Abstract

Abstract

Cementitious materials were prepared with molybdenum tailings,slag,clinker and desulfurization gypsum.The influence of dosage of molybdenum tailings,dosage of water reducing agent and curing process on compressive strength was researched.The hydration products of gelled material were analyzed with XRD and SEM.The results show that when the mass ratio of molybdenum tailings in cementitious materials is 15%,dosage of PC super plasticizer is 0.4% amount of cement,curing process is wet and heat curing at 60 ℃,the highest compressive strength of molybdenum tailings concrete is 73.2 MPa.The hydration products of gelled material prepared with molybdenum tailings are mainly ettringite and C-S-H gel.The intertwining of ettringite and C-S-H gel,has enhanced the strength of concrete.

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