Long-Term Shrinkage of Concrete using some Porous Icelandic Aggregates

被引：0

作者：

Flosason, Valgeir O. ^{[1
,2
]}

Agustsdottir, Eva L. ^{[3
]}

Wallevik, Olafur H. ^{[1
,2
]}

机构：

[1] Reykjavik Univ, ICI Rheoctr, Arleynir 2-8, IS-112 Reykjavik, Iceland

[2] Innovat Ctr Iceland, IS-112 Reykjavik, Iceland

[3] Ferill Engn, IS-108 Reykjavik, Iceland

来源：

NORDIC CONCRETE RESEARCH | 2014年 / 50卷 / 02期

关键词：

Concrete; Shrinkage; Porous Aggregate; Deflection; Prediction Models;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this work, the long-term shrinkage of concrete containing some Icelandic porous aggregates is examined. This was done by measuring the length change of concrete prisms in accordance with the ASTM C157/C157M-99 standard. The results indicate that concrete continues to shrink over long period of time, independent to evaporation caused by drying. The results also show that the measured shrinkage is considerably higher than estimated shrinkage according to the Eurocode 2 (EC2) prediction model. Due to this difference, deflection can be underestimated when designing concrete structures, as shrinkage influences deflection according to EC2.

引用

页码：307 / 310

页数：4

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