Cracking Appraisal and Anti-Crack Measures Research of Cross Sea Bridge Concrete

Jia Ying Sun; Hua Qin Jiang; Shao Feng Sui

doi:10.4028/www.scientific.net/KEM.405-406.367

Paper Titles

Experimental Study on Flexural Performance of Corroded RC Beams Strengthened with AFRP Sheets
p.343

Effect of Hydration of Unreacted Cement in Hardened Mortar with Low W/C on the Long-Term Strength
p.350

Research on the Strengthening Effect of Phosphorus Slag Powder on Cement-Based Materials
p.356

Study and Application of Salt-Scaling Resistant Admixture in Concrete
p.361

Cracking Appraisal and Anti-Crack Measures Research of Cross Sea Bridge Concrete
p.367

Experimental Study on the Characteristics of GGBS Concrete Bending Specimens
p.373

Effect of Inorganic Salts on Pore Structure of Cement Paste
p.378

Fractal Theory Used in Pore Structure of Cement-Based Materials Incorporated Phosphorus Slag
p.384

Design on the Concrete Structure Durability of the Relocation of Shougang and the Steel Project Construction of Caofeidian
p.390

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Cracking Appraisal and Anti-Crack Measures Research of Cross Sea Bridge Concrete

Abstract:

Through the experiment, this paper carries on the appraisal to the cracking risk of cross-sea bridge concrete. Analyzed the influence of active admixture, sand ratio, cement content and water-cement ratio to the cracked degree of concrete. And proposed control measure of the plastic shrinkage cracking of concrete. Finally, through research to the concrete used in pile cap of the Shanghai Yangtze River Bridge, it obtains that all can be allowed to reduce the cracking risk of concrete by reducing active admixture, increasing to fly ash amount, reducing sand ratio, the slag powder has little effect the cracking risk of concrete, the silica fume can increase the cracking risk of concrete.