You need to think about initial curing when the bleed water is evaporating too rapidly to keep the surface wet prior to initial set. Traditionally that has been specified at greater than 0.2 pounds per square foot per hour. Many mixes today bleed at much lower rates than this, so if there...
60. Cracking Tendency of Concrete due to Drying ShrinkageSUZUKI, KazuoOHNO, YoshiteruNAKAGAWA, TakaoOHTA, Hiroshi
In order to prevent concrete cracking caused by uneven settlement, thermal effects, autonomous shrinkage, drying shrinkage, or other effects, different parts of hydropower structures are often connected with transverse joints. These joints are generally set at the site where the internal force is low...
Minimizing Shrinkage, Creep, and Cracking Damage to Concrete Bridges: Part 1: Creep and Shrinkage Prediction Model for Analysis and Design of Concrete Stru... This final report consists of two parts: a paper published previously in conference proceedings and the Table of Contents from another ...
To predict potential early-age cracking after concrete placing, a numerical simulation procedure has been completed based on a micromechanical model and empirical formulas on the property development of young concrete. The numerical model could account for the effects of hydration, moisture transport and...
Information on how to prevent concrete from cracking provided by the Concrete Network. This includes major reasons cracking occurs, including excess water in the mix, rapid drying of the concrete, improper strength, and lack of control joints
1315 Study on Decrease of the Drying Shrinkage Cracking of Concrete : Part. 1 the Free Shrinkage Warp NAKANO Takeharu , KOGA Kazuya , KINUGASA Hideyuki , HAYASHI Toru , YOSHIOKA Masahiro Summaries of technical papers of Annual Meeting Architectural Institute of Japan. A-1, Materials and construct...
Concrete is susceptible to cracking owing to drying shrinkage, freeze-thaw cycles, delayed ettringite formation, reinforcement corrosion, creep and fatigue, etc. Continuous inspection and maintenance of concrete infrastructure require onerous labor and h
cracking and drying shrinkage of high performance concrete,and their inhibitory effects are in different degrees.When used alone fibers,polypropylene fibers inhibiting effect of an early plastic shrinkage cracking is superior to carbon fiber,while carbon fiber is better than the effect of inhibiting ...
Abstract Concrete is susceptible to cracking owing to drying shrinkage, freeze-thaw cycles, delayed ettringite formation, reinforcement corrosion, creep and fatigue, etc. Continuous inspection and maintenance of concrete infrastructure require onerous labor and high costs. If the damaging cracks can heal ...