钢筋对中低强度细石混凝土的抗冻性研究

混凝土破坏的诸多原因之中除氯盐腐蚀外,冻融破坏是影响混凝土耐久性结构的重要原因,实际工程中的混凝土结构多为自然养护,本试验通过对中低强自然养护28d的有配筋和无配筋的细石混凝土进行冻融循环,通过测量质量损失率和动弹性模量损失率,对比处于自然养护条件下的钢筋对混凝土的抗冻性影响。

In addition to chloride corrosion, freeze-thaw failure is an important reason that affects concrete durability structure. In actual projects, concrete structures are mostly cured naturally.Through freezing and thawing cycles of fine stone concrete with and without reinforcement after 28 days of natural curing,Measure the mass loss rate and dynamic modulus of elasticity loss rate. The influence of reinforcement under natural curing conditions on freezing resistance of concrete is compared.