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原文传递 Effects of Supplementary Cementing Materials on the Setting Time and Early Strength of Concrete.

题名：	Effects of Supplementary Cementing Materials on the Setting Time and Early Strength of Concrete.
作者：	juenger, m. won, m. fowler, d. suh, c. edson, a.
关键词：	blast furnance, slags, fly ash, admixtures, temperature conditions, strength, performance evaluation
摘要：	The substitution of a portion of cement in concrete with supplementary cementing materials (SCM) frequently results in delayed setting and low early strength. When SCM-containing concrete is placed during cold weather and/or contains certain chemical admixtures, these problems can intensify and can seriously impact the performance of a pavement. This project investigated the setting time, early strength gain, maturity, bleeding, and plastic shrinkage cracking of several concrete pavement mixtures containing SCM under different temperature conditions (mimicking summer, spring, and winter weather). The data were used to develop guidelines for identifying slow-setting mixtures and preventing their use in pavements. / NOTE: Technical rept. (Dec. 11, 2005 - Nov. 30, 2006). / Supplementary Notes: Sponsored by Texas Dept. of Transportation, Austin. Research and Technology Implementation Office. and Federal Highway Administration, Austin, TX. Texas Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0822；81p
报告类型：	科技报告