Properties of self-compacting portland pozzolana and limestone blended cement concretes containing different replacement levels of slag
Properties of self-compacting portland pozzolana and limestone blended cement concretes containing different replacement levels of slag
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DOI：
10.1617/s11527-011-9706-0
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发表时间：
2011-10-01
影响因子：
3.8
通讯作者：
Gesoglu, Mehmet
中科院分区：
文献类型：
--
作者：
Guneyisi, Erhan;Gesoglu, Mehmet
为了减少能源消耗和二氧化碳排放，并增加产量，水泥制造商正在混合或共磨矿物添加剂，如矿渣，天然火山灰和石灰石。本文报道了用波特兰水泥（PC）、波特兰灰（PPC）和波特兰石（PLC）混合水泥配制自密实混凝土（SCC）的试验研究结果。此外，还研究了PPC、PLC和PC水泥中不同置换量（0-45%）的磨细矿渣（GGBFS）对水泥新拌性能的影响。（如坍落流径、T（500）坍落流时间、V形漏斗流时间、L形盒高比、凝结时间、和粘度）和硬化性能（如抗压强度和超声波脉冲速度）进行了研究。从试验结果中发现，可以用PPC或PLC水泥制造具有与PC水泥相当或上级性能的自密实混凝土。此外，在普通混凝土和混合水泥自密实混凝土生产中使用矿渣微粉，大大增强了自密实混凝土的新鲜特性。
In order to reduce energy consumption and CO2 emission, and increase production, cement manufacturers are blending or inter-grinding mineral additives such as slag, natural pozzolana, and limestone. This paper reports on the results of an experimental study on the production of self-compacting concrete (SCC) produced with portland cement (PC), portland pozzolana (PPC) and portland limestone (PLC) blended cements. Moreover, the effect of different replacement levels (0-45%) of ground granulated blast furnace slag (GGBFS) with the PPC, PLC, and PC cements on fresh properties (such as slump flow diameter, T (500) slump flow time, V-funnel flow time, L-box height ratio, setting time, and viscosity) and hardened properties (such as compressive strength and ultrasonic pulse velocity) of self-compacting concretes are investigated. From the test results, it was found that it was possible to manufacture self-compacting concretes with PPC or PLC cements with comparable or superior performance to that of PC cement. Furthermore, the use of GGBFS in plain and especially blended cement self-compacting concrete production considerably enhanced the fresh characteristics of SCCs.