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Rapid-Setting Controlled Low-Strength Material for Routine and Emergency Rehabilitation of Transportation Materials. Final rept. (15 Apr 03-15 Aug 04).
| 题名： | Rapid-Setting Controlled Low-Strength Material for Routine and Emergency Rehabilitation of Transportation Materials. Final rept. (15 Apr 03-15 Aug 04). |
| 作者： | pierce, c. e. ihekweazu, s. |
| 关键词： | *Concrete-accelerators.;Test-methods; Evaluation-; Hardening-; Setting-time; Flowable-fill; Rehabilitation-; Cements-; Penetrometers-. |
| 摘要： | An experimental investigation of rapid setting controlled low-strength materials (CLSM) mixtures is described in this research report. The setting and hardening times of CLSM batched with concrete accelerators (chloride and non-chloride) were evaluated using multiple test methods. Mixtures containing an accelerating admixture hardened at least 24 hours faster than those without admixtures. Due to the lower cement content of CLSM, a larger admixture dosage is required than that normally recommended for concrete. A pocket penetrometer and mortar penetrometer were determined to be the most suitable instruments to determine setting and hardening time. |
| 报告类型： | 科技报告 |
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