Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-Healing Performance of PVA-ECC-Stabilized Crushed Stone Mixture
For improving the crack resistance of the semi-rigid base of an asphalt pavement and self-healing property to the base, the main materials (cement, fly ash, quartz sand, and polyvinyl alcohol) for a polyvinyl alcohol-engineered cementitious composite (PVA-ECC) were added to the regular materials for a new self-healing material for pavement base, i.e., PVA-ECC-stabilized crushed-stone mixture (PECR). Compressive strength tests were conducted on the base materials with various curing times to evaluate self-healing performance by comparing the strengths of standard specimens and specimens with cracking under different conditions (outdoor curing, laboratory curing, and dry-wet circulation). Results of the tests indicate that PECR has superior self-healing performance and that the compressive strength increases by 57.3% after self-healing. The compressive strength of PECR is higher than that of cement-stabilized crushed-tone mixture, and the peak compressive strength increases by 42%. The material that experienced dry-wet circulation has the highest compressive strength and the best self-healing peifcnmance.
Self-Healing Performance of PVA-ECC-Stabilized Crushed Stone Mixture
For improving the crack resistance of the semi-rigid base of an asphalt pavement and self-healing property to the base, the main materials (cement, fly ash, quartz sand, and polyvinyl alcohol) for a polyvinyl alcohol-engineered cementitious composite (PVA-ECC) were added to the regular materials for a new self-healing material for pavement base, i.e., PVA-ECC-stabilized crushed-stone mixture (PECR). Compressive strength tests were conducted on the base materials with various curing times to evaluate self-healing performance by comparing the strengths of standard specimens and specimens with cracking under different conditions (outdoor curing, laboratory curing, and dry-wet circulation). Results of the tests indicate that PECR has superior self-healing performance and that the compressive strength increases by 57.3% after self-healing. The compressive strength of PECR is higher than that of cement-stabilized crushed-tone mixture, and the peak compressive strength increases by 42%. The material that experienced dry-wet circulation has the highest compressive strength and the best self-healing peifcnmance.
Self-Healing Performance of PVA-ECC-Stabilized Crushed Stone Mixture
Zeng, Meng-lan (Autor:in) / Nan, Ding (Autor:in) / Wu, Chao-fan (Autor:in) / Zhu, Tao (Autor:in) / Li, Jun-feng (Autor:in)
15.09.2016
52016-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Crushed stone stabilized bases
| Engineering Index Backfile | 1950
Shrinkage Performance of Lime-Fly Ash Stabilized Crushed Stone
| Tema Archiv | 2013
Roads with stabilized crushed stone foundation in Sweden
| Engineering Index Backfile | 1955
Function Design of Cement Stabilized Crushed Stone Drainage Base
| British Library Conference Proceedings | 2009