HU Li-qun, SHA Ai-min, ZHANG Sha-sha. Design method of no-fines porous concrete composition based on vibration compaction[J]. Journal of Traffic and Transportation Engineering, 2012, 12(2): 1-9. doi: 10.19818/j.cnki.1671-1637.2012.02.001
Citation: HU Li-qun, SHA Ai-min, ZHANG Sha-sha. Design method of no-fines porous concrete composition based on vibration compaction[J]. Journal of Traffic and Transportation Engineering, 2012, 12(2): 1-9. doi: 10.19818/j.cnki.1671-1637.2012.02.001

Design method of no-fines porous concrete composition based on vibration compaction

doi: 10.19818/j.cnki.1671-1637.2012.02.001
Funds:

New Century Excellent Talents in University NCET-08-0748

National Natural Science Foundation of China 50878027

"Eleventh Five-Year" National Science and Technology Support Program 2006BAJ18B05

Special Fund for Basic Scientific Research of Central Colleges CHD2010JC107

Special Fund for Basic Scientific Research of Central Colleges CHD2011TD014

More Information
  • Author Bio:

    HU Li-qun(1971-), Male, Xi'an, Shaanxi, Associate Professor of Chang'an University, PhD, Researchon Road Structure and Materials, +86-29-82334826, hlq123@126.com

  • Received Date: 2011-11-22
  • Publish Date: 2012-04-25
  • The viscosity change rules of cement pastes, cement fly-ash pastes and cement silica fume pastes with different water to powder ratios were studied by using paste penetration test.Paste adhesive capacity to aggregate and paste leakage condition were analyzed based on mixture mixing test and vibration compaction test, and the design method of no-fines porous concrete composition at vibration compaction condition was provided.Analysis result indicates that in the mixing process of mixture, the amount of paste adhered to aggregate increases firstly and then decreases with the increase of paste penetration value, and paste adhesive ability is great when penetration value is 20-40 mm.Penetration value is further narrowed to 20-25 mm to avoid paste leakage and specimen damage at vibration compaction condition.No-fines porous concrete with 21.8% void ratio is designed by using the method, pore distribution in specimens is uniform, and 28 d compressive strength and flexural strength can reach 22.8 MPa and 3.4 MPa respectively.

     

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