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Influence of various amounts of limestone powder on performance of Portland limestone cement concretes

机译：各种石灰石粉对波特兰石灰石水泥混凝土性能的影响

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摘要

The benefits of limestone as a partial replacement for Portland Cement (PC) are well established. Economic and environmental advantages by reducing CO_2 emissions are well known. The paper describes the effect of various amounts of limestone on compressive strength, water penetration, sorptivity, electrical resistivity and rapid chloride permeability onconcretes produced by using a combination of PC and limestone at 28,90 and 180 days. The percentages of/limestone that replace PC in this research are 0 percent, 5 percent, 10 percent, 15 percent and 20 percent by mass. The water/(clinker + limestone) or (w/b) ratios are 0.37,0.45 and 0.55 having a constant total binder content of 350 kg/m3. Generally, results show that the Portland limestone cement (PLC) concretes having up to 10 percent limestone provide competitive properties with PC concretes.
机译：石灰石作为波特兰水泥（PC）的部分替代品的好处已广为人知。通过减少CO 2排放的经济和环境优势是众所周知的。本文描述了在28,90和180天使用PC和石灰石混合生产的混凝土上，各种数量的石灰石对抗压强度，水渗透性，吸水率，电阻率和快速氯离子渗透性的影响。在这项研究中，取代PC的石灰石/石灰石的质量百分比分别为0％，5％，10％，15％和20％。水/（熟料+石灰石）或（w / b）之比为0.37、0.45和0.55，恒定总粘合剂含量为350 kg / m3。通常，结果表明，石灰石含量高达10％的波特兰石灰石水泥（PLC）混凝土与PC混凝土具有竞争性。

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