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Test of effects of parameters on continuously reinforced concrete pavement(CRCP)performance(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年01期
Page:
23-29
Research Field:
Publishing date:
2010-02-20

Info

Title:
Test of effects of parameters on continuously reinforced concrete pavement(CRCP)performance
Author(s):
ZUO Zhi-wu1; 2;  ZHANG Hong-liang1;  CHEN Jiang1
1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Shandong Province Bureau of Highway, Jinan 250002, Shandong, China
Keywords:
road engineering;  CRCP;  performance;  crack;  active control
PACS:
U416.217
DOI:
-
Abstract:
Based on the field investigations of CRCP disasters, the cluster cracking and punchout were adopted as the performance criteria. Eleven test sections were designed and constructed to test the compressive strength, tensile strength, flexural strength, compressive modulus and flexural modulus of concrete, through changing the concrete material, base, erosion prevention of steel, the angle between transverse steel and longitudinal steel, the depth of longitudinal reinforcement, and the distance of cracks. The cracks in early age were surveyed and falling-weight-deflectometer tests were carried out. The results show that: the concrete material, the angle between transverse steel and longitudinal steel and base have more effects on cluster cracking than the one of separating layer between concrete slab and base, and to pre-produce the active cracks with the spacing of 1 m to 5 m can prevent the occurrence of natural cracks between active cracks. 8 tabs, 11 refs.

References:

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Memo

Memo:
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Last Update: 2010-02-20