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Microcracking for Reduced Shrinkage in Cement-Treated Base.
| 题名： | Microcracking for Reduced Shrinkage in Cement-Treated Base. |
| 作者： | S. Sebesta; |
| 关键词： | microcracking,cement treated base,shrinkage cracking,reflective cracking,cement-treated base(ctb)/cracking(fracturing), concrete pavements, evaluation, monitoring, cement hydrating/cracking(fracturing), concrete pavements, evaluation, monitoring, cement hydrating |
| 摘要： | Shrinkage cracking occurs in cement-treated bases (CTB) due to desiccation and cement hydration. Eventually these cracks start to reflect through the pavement surfacing. While initially cosmetic in nature, these cracks open the pavement to water infiltration and increase the likelihood of accelerated pavement distress. This project focused on evaluating the effectiveness of the microcracking concept for reducing shrinkage cracking in cement-treated bases. Microcracking can be defined as the application of several vibratory roller passes to the cement-treated base at a short curing stage, typically after 1 to 3 days, to create a fine network of cracks. The goal of microcracking is to prevent severe, wide cracks from forming and thus reduce the risk of problematic reflective cracking through the pavement surfacing. / Title Note: Project summary rept. / Supplementary Notes: See also PB2006-100907, PB2006-105535, and PB2011-103898. Sponsored by Texas Dept. of Transportation, Austin. 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 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A01/MF A01 / Corporate Author Code: 015063000 / Classifivation: Unclassified report |
| 报告类型： | 科技报告 |
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- LABORATORY PERFORMANCE EVALUATION OF CEMENT-STABILIZED SOIL BASE MIXTURES.
- Effectiveness of Minimizing Reflective Cracking in Cement-Treated Bases by Microcracking. Technical rept. (Sept. 2002-Aug. 2004).
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