1.1.2修补或覆盖材料与基材的粘结强度. 1.1.3修补或覆盖材料或修补中使用的粘合剂在材料应用于表面后的抗拉强度. 1.2以国际单位制或英寸-磅单位表示的数值应单独视为标准值.每个系统中规定的值可能不是精确的等效值;因此,每个系统应相互独立使用. 将两个系统的值合并可能会导致不符合标准. 1.3 本标准并非旨在...
Study on the Test Method of Concrete Strength in Uniaxial Direct Tension After analyzing the effect of grip manner on the stress distribution in tensile specimen, a glued double-plated grip manner was adopted, and a new test met... B Peng,W Zheng - 《Journal of Hunan University》 被引量:...
Gardner and Jacobson [5] admitted that, as the steel tube restrains the concrete core at failure, an internal pressure (σr) develops between the steel tube and concrete, creating a tensile hoop stress (σt) in the steel tube. Due to this confining effect, the compressive strength of the...
P., ‘Fracture mechanics analysis of high-strength concrete’,1 (4) (1989) 185–197. Article Google Scholar Toutanji, H. A., ‘The Development of a Cementitious Composites Axial Tensile Technique and Its Application to Carbon Fiber Reinforced Cementitious Composites’, Ph.D. Thesis, Worcester...
Splitting tensile strength (STS) is one of the concrete mechanical properties that are used in structural design. It can be related to numerous parameters, which include compressive strength, water/binder (W/B) ratio and concrete age. Until now, most researchers estimated the STS directly from ...
Owing to the low tensile strength of concrete, its use is limited. This being the core reason of its reinforcement and the most suitable material that serves the purpose is steel. In current energy crisis scenario, the demanding concern is to find other economical and easily available substitute...
a B. special form of air conditioning B. 空调的特殊格式[translate] aThe authors of this paper have recently succeeded in designing a high-strength, high-ductility concrete (HSHDC) that combines very high compressive strength (166 MPa ) [24.1 ksi]) and very high tensile ductility with 3.4% ...
"A tribute to Analysis of Crack Formation and Crack Growth in Concrete by Means of Fracture Mechanics and Finite Elements""" A method is presented in which fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a... A Hiller...
Concrete containing short fibres bridges the micro-cracks thereby enhancing the peak-strength [5]. Long and coarse fibres control the propagation of macro-cracks and improve the toughness at post-crack region [6], [7]. To achieve overall improvement both in tensile strength and energy absorption...
Researchers at the University of Michigan have recently developed a new class of concrete, named High Strength-High Ductility Concrete (HSHDC), which possesses exceptional combination of compressive strength (> 150 MPa) and tensile ductility (> 3%) under quasi-static loads. The structural application...