Concrete tensile strength

Many cases for processing or improper control , the stress will exceed concrete tensile strength and cause structure produce temperature crack , give structure use and safety brought hidden trouble .

许多情况下因处理或控制不当，这种应力会超过混凝土抗拉强度而导致结构产生温度裂缝，给结构的使用及安全带来隐患。

Due to the tensile strength of adhesive layer larger than concrete tensile strength , Interface failure mode usually is shear failure of concrete that near the adhesive layer , and debonding failure from the loading end to the free end .

由于胶层的抗拉强度比混凝土抗拉强度要大，界面破坏一般情况下是胶层附近的混凝土发生剪切破坏，剥离破坏是从加载端向自由端破坏。

The optimization arrangement method for prestress scales and anchoring locations are presented in order to deal with local stress larger than concrete tensile strength .

根据有限元数值计算结果，提出了优化预应力锚索布置和锚固力大小的方法，解决了大坝堰顶处混凝土在锚固过程中局部拉应力过大的技术难题。

Some problems of test of concrete homogenous tensile strength

混凝土均匀受拉强度试验中的几个问题

Concrete splitting tensile strength and failure criterion for different loading rate and lateral stress

有侧压混凝土的变速率劈拉强度试验及其破坏准则研究

Mixed concrete splitting tensile strength enhanced obviously , and have excellent strength restore performance .

混杂混凝土劈裂抗拉强度明显增强，并具有极好的强度恢复性能。

The effect of loading rate on concrete splitting tensile strength for different lateral stresses is studied .

系统地探讨了有侧应力作用时，混凝土在不同加载速率下的劈拉强度规律。

Concrete splining tensile strength is generally less than its shear strength .

混凝土的劈裂抗拉强度通常小于抗剪强度。

Study on calculative formulas of concrete biaxial tensile strength

混凝土双向拉伸强度计算公式研究

Tension eccentricity of the specimen section is the main problem in concrete homogenous tensile strength test .

试件截面受拉偏心是混凝土均匀受拉强度试验中存在的主要问题。

Considering the initial defects of concrete , tensile strength of composite material phases ( mortar matrix , aggregates and bond ) is assumed to obey Weibull distribution . Consequently , the lattice model generated is more reasonable .

考虑到混凝土的初始缺陷，假设混凝土内各相组分（砂浆、骨料和界面）的抗拉强度均服从Weibull分布，从而使生成的网格模型和实际结构更为接近。

In this paper we introduce the calculative formulas of the concrete biaxial tensile strength at home and abroad , and first present our proposing formula . Meanwhile , from Hill anisotropic criterion and the uniaxial tensile experimental result we deduce the expression of the concrete biaxial tensile strength .

简要介绍国内外已有的混凝土双向强度计算公式，并首次提出作者建议的公式.针对混凝土的特性，由Hill各向异性判据，还导出了由单向拉作试验结果表达的混凝土双向拉伸强度计算公式。

Experimental Study on Premixed Concrete of the Direct Tensile Strength of Time-dependent at Early Ages

商品混凝土早期时随轴心受拉强度的试验研究

The two materials learn from each other , give full play to the performance of concrete in compression and tensile strength of steel , to optimize the effect .

钢管混凝土结构是混凝土与钢材的最佳组合方式，两种材料取长补短，充分发挥了混凝土抗压性能和钢材的抗拉性能，达到优化组合的作用效果。

The cracks are occurred easily in concrete because of low tensile strength , this paper introduces the BICS method of concrete crack mend according to practical projects , summarizes the characteristics of BICS method .

混凝土由于抗拉强度很低，很容易在受拉区产生裂缝。通过工程实例介绍了混凝土裂缝修补的BICS施工法，并总结出了BICS施工法作为修补混凝土结构裂缝所具有的特点。

This can prevent the propagation of micro crack and macro crack in concrete and improve the tensile strength , flexural strength and shearing strength of specified density steel fiber concrete . Its shock resistance , fatigue resistance and fracture toughness also have bigger improvement .

可阻碍混凝土内部微裂缝的扩展和阻滞宏观裂缝的发生和发展，显著提高混凝土的抗拉、抗弯及抗剪强度，抗冲击、抗疲劳，裂后韧性和耐久性也有较大改善。

In this article , the author introduces the using of expansion strengthening zone in ultra-long reinforcement concrete structure to improve concrete tensile strength and to control the development of shrinkage crack .

介绍超长钢筋混凝土墙体中使用膨胀加强带及增加温度应力钢筋提高混凝土自身的抗拉性能，控制混凝土收缩裂缝的技术措施。

Then the calculation formula , reflecting the relationship between the fracture toughness K_ ( IC ) ( ceramsite reinforced concrete and ordinary concrete ) and tensile strength , notch depth , is presented .

提出了断裂韧度K（IC）与混凝土抗拉强度、切口深度的计算公式。试验和分析证实。

The choice of material in construction of bridge is basically between steel or concrete , and main trouble with concrete is that its tensile strength is very small .

桥梁建筑材料基本上仍在方才和混凝土之间选择，而混凝土的主要缺点是抗拉强度低。

Early concrete cracks because concrete 's shrinkage deformation and concrete elastic modulus and tensile strength does not adapt produces .

混凝土早期裂缝产生是因为混凝土的收缩变形与混凝土弹性模量和抗拉强度不相适应产生的。

At present , the research of pre-crack concrete fatigue performance is very few because the structure design concept is that the concrete tensile strength is zero .

目前因为结构设计中混凝土抗拉强度假设为零以及混凝土不受拉的通行结构设计理念，使得关于带裂纹的混凝土拉压循环疲劳性能研究还鲜有涉足。

First , the steel fiber reinforced concrete and the lightweight aggregate concrete can make up the deficiencies of common concrete such as low tensile strength and large dead weight .

首先，钢纤维和轻骨料能弥补普通混凝土存在的抗拉强度低和自重大等方面的不足。

Recycled concrete beams ' crack breaking moment are increased with the rising of reinforcement ratio , but the ratio of reinforcement has little impact , concrete tensile strength is the major impact factor .

再生混凝土梁的开裂弯矩随配筋率的提高有提高的趋势，但是配筋率对开裂弯矩影响不大，再生混凝土梁的开裂弯矩主要由混凝土的抗拉强度决定。

The corrosion fatigue of concrete structure is mainly due to the initial defects after material erode and internal injury in the process of fatigue which lead to the decline of strength , so understanding the change rule of concrete tensile fatigue residual strength has practical significance .

混凝土结构的腐蚀疲劳主要是因材料受腐蚀后的初始缺陷和疲劳时的内部损伤两部分因素导致强度下降，因此了解腐蚀后混凝土抗拉疲劳剩余强度变化规律具有实际意义。