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...
Many researchers have suggested tensile strength formulae for HPC or high-strength concrete, the majority of which involved the square root function, similar to that proposed by ACI [3]. De Larrard and Malier [4] found that the calculated STS obtained from the French regulations are in good...
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...
ZhangSchool;of;Civil;and;Transportation;Engineering;Beijing;University;of;Civil;Engineering;and;Architecture;Beijhag;100044;Chinavip土木工程与技术:中英文版HE X X,Zhang Y H.Experimental Study of Three Direct Tensile Strength of Fly Ash Concrete[J].Civil Engineering and Technology,2015,4(1):1-8....
Tensile strength is a crucial property for the function, safety and durability of all concrete structures. The general procedure to assess the tensile properties of concrete from existing structures is to perform indirect tests and predict the tensile strength based on established empirical relationships...
[11,12,27]. The pullout test scheme studied the effect of different parameters on the bond strength of the steel embedded in cylindrical concrete. However, this pullout test approach does not simulate the actual stress condition as prevails in the beam and thus has been objected to by ...
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% average tensile strain capacity under direct tension loading 本文的作者在...
Also the softening effect has been included by using the formula for tensile strength of cracked concrete proposed by Belarbi and Hsu. The proposed model has been validated with 43 experimental results by author and from literature which confirm the coherency and conservativeness of the predicted ...
The results show that alkaline activators have a significant influence on the quasi-static splitting tensile strength of geopolymer concrete. For low strain rate loadings, the geopolymer concrete with low compressive strength had a larger DIF and the viscous effect was found to be the main cause ...
Seven responses (quality of sample molding, distribution of fibers, dry density, water absorption, compression strength, tensile splitting strength and the ratio of tensile splitting strength to compression strength) of each formula have been measured. According to the analysis of test results, an ...