Effects of Cement Changes and Aggregate System on Mechanical Properties of Concrete

Sharma Achintyamugdha; Sirotiak Todd; Stone Matthew L.; Wang Xuhao; Taylor Peter

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Effects of Cement Changes and Aggregate System on Mechanical Properties of Concrete

机译：水泥变化和骨料系统对混凝土力学性能的影响

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In this study, the mechanical properties of concrete mixtures containing different cementitious combinations and two aggregate systems were investigated under plastic and drying conditions. Emphasis was laid on the durability and shrinkage of concrete. Life cycle analysis (LCA) was also conducted by using the Green Concrete LCA web tool. Results indicated that the presence of larger aggregate sizes tend to enhance durability of concrete. The presence of nanosilica also imparted superior mechanical properties to concrete. A cementitious combination containing Portland limestone cement and fly ash with larger aggregate sizes emerged as a better performing mixture in terms of mechanical properties and with minimum environmental impact. (C) 2021 American Society of Civil Engineers.

机译：在该研究中，在塑料和干燥条件下研究了含有不同水泥组合的混凝土混合物和两个聚集体系的机械性能。重点是混凝土的耐久性和收缩。使用绿色混凝土LCA网状工具进行生命周期分析（LCA）。结果表明，较大的聚集体尺寸的存在倾向于提高混凝土的耐久性。纳米硅的存在还赋予混凝土的优异的机械性能。含有波特兰石灰石水泥和粉煤灰的水泥组合，含有较大的聚集体大小，在机械性能方面具有更好的表现混合物，并具有最小的环境影响。（c）2021年美国土木工程师协会。

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来源
《Journal of Infrastructure Systems》 |2021年第3期|04021012.1-04021012.12|共12页
作者
Sharma Achintyamugdha; Sirotiak Todd; Stone Matthew L.; Wang Xuhao; Taylor Peter;
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JCMS Inc Mercerville NJ 08619 USA|Parsons Corp 2 Gateway Ctr Newark NJ 07102 USA;

North Dakota State Univ Dept Construct Management & Engn Dept 2475 Fargo ND 58105 USA;

North Dakota State Univ Dept Construct Management & Engn Dept 2475 Fargo ND 58105 USA;

Changan Univ Sch Highway Xian 710064 Peoples R China;

CP Tech Ctr 2711 South Loop Dr Suite 4700 Ames IA 50010 USA;

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Effects of Cement Changes and Aggregate System on Mechanical Properties of Concrete

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