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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >Performance of early-opening-to-traffic Portland cement in sulfate-rich environment
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Performance of early-opening-to-traffic Portland cement in sulfate-rich environment

机译：在富含硫酸盐的环境中早期向交通开放的波特兰水泥的性能

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摘要

This paper presents the results of a study on sulfate resistance of fast track concrete (FTC). A total of six concretes were used in this investigation. Laboratory-made specimens were prepared using three distinct cement factors and exposed to "very severe" external sulfate attack based on ASTM C1012. The test specimens were cured for the opening-to-traffic time and 28 days (moist cured), prior to immersion in the 5 percent sulfate solution. Length change, mass loss, and compressive strength were monitored for a period of 270 days to evaluate the performance for the trial specimens exposed to "very severe" sulfate attack. The influence of cement content and curing age on bulk characteristics and sulfate resistance were evaluated.
机译：本文介绍了对快速轨道混凝土（FTC）的耐硫酸盐性的研究结果。这项调查总共使用了六种混凝土。使用三个不同的水泥因子制备了实验室标本，并根据ASTM C1012暴露于“非常严重”的外部硫酸盐侵蚀下。在浸入5％的硫酸盐溶液中之前，将测试样品固化至通行时间和28天（湿固化）。在270天的时间内监测长度变化，质量损失和抗压强度，以评估暴露于“非常严重”硫酸盐侵蚀下的试验样品的性能。评估了水泥含量和固化时间对体积特性和抗硫酸盐性的影响。

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