The effect of exposition conditions on the durability of cement concrete with dolomite aggregate sourced near Krakow, Poland

被引：2

作者：

Debska, Dominika ^{[1
]}

机构：

[1] Cracow Univ Technol, PL-31155 Krakow, Poland

来源：

7TH SCIENTIFIC-TECHNICAL CONFERENCE ON MATERIAL PROBLEMS IN CIVIL ENGINEERING (MATBUD'2015) | 2015年 / 108卷

关键词：

Durability; Dedolomitisation; Concrete with dolomite aggregate; Sulfates; Wetting-drying cycles; Temperature conditions; Linear extension; Compressive strength; Optical microscopy; ALKALI-CARBONATE REACTION; COMPRESSIVE STRENGTH; DEDOLOMITIZATION; MEDIA;

D O I：

10.1016/j.proeng.2015.06.198

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Some dolomite aggregates exposed to a wet environment may decompose. The presence of sodium, magnesium, calcium and sulfate ions in the corrosive medium and the higher temperature can increase the rate of aggregate decomposition. The results of a study on the impact of defined environmental exposition to a H2O, Mg(OH)(2), MgSO4, Na2SO4 solutions in various temperature conditions on the susceptibility to dedolomitisation processes of cement concrete made with selected dolomite aggregate are presented in the paper. The observation of linear extension as well as changes in compressive strength and surface alteration due to corrosive exposition conditions were the key diagnostic features adopted for this examination. (C) 2015 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of organizing committee of the 7th Scientific-Technical Conference Material Problems in Civil Engineering

引用

页码：673 / 680

页数：8

共 18 条

[1]

[Anonymous], 196 PNEN

[2]

[Anonymous], 12620A12010 PNEN

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