Mechanical Properties and Durability of Limestone Cement

• Main Authors: Shun-Ting Chang, 張舜庭
• Other Authors: chun-taoc Chen
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/j7r7kd

碩士 === 國立臺灣科技大學 === 營建工程系 === 100 === This study explores the mechanical properties and durability of the limestone cements. The limestone was added up to 25% by volume. Results showed that the compressive strengths of the limestone mortars were reduced by the limestone addition. Similar tendencies were found in the flexural strengths, the tensile strengths, the splitting strengths, and the bonding strengths. However, the reduced long-term compressive strengths could be compensated by the addition of fly ash, which further reduced the use of cement. On the other hand, as the limestone addition was increased, the shrinkage, sulfate expansion, and water expansion was reduced, but the carbonation was increased. In general, although the durability of the cements was mostly improved by the limestone addition, the significant reduction in the mechanical properties at high dosages should be noticed.