This paper presents the damage of concrete and its dependence on different strength grades of concrete under the simultaneous action of load and freeze-thaw cycles, and analyzes the inhibiting effect of air entrainment and steel fibers on damage. The loss of dynamic elastic modulus and the flexural...
Theoretical models developed to predict the ultimate strength of CFDST stub columns and beams are also described. Both outer and inner tubes were cold-formed C450 (450 MPa nominal yield stress) square hollow sections (SHS). Four different section sizes were chosen for the outer tubes with a ...
The RC frame is made of concrete with strength class C30/37 and reinforcing steel B500B with high ductility. The construction of masonry infills was carried out in a usual way of bricklaying. Thermoplan SX10 clay bricks with narrow vertical voids are connected by Maxit 900D thin layer morta...
The present study evaluates the application of class F fly ash as a partial replacement of binder in concrete. The compressive strength of the fly ash samples showed low early compressive strength comparing to the control samples. However, due to pozzolanic reaction strength was improved gradually ...
as well as ultimate load bearing capacity in the CFRP sheets were analyzed.The results indicate that the effect of sustained loaded eccentric high-strength concrete columns strengthened with CFRP sheets is obvious,the ultimate load bearing capacity of concrete columns is enhanced and the ductility of...
Predicting concrete strength is complex due to the high non-linearity involved in strength development, especially when using supplementary cementitious materials (SCMs) such as fly ash, silica fume, and GGBS. In this paper, an artificial neural network has been used to predict the compressive stren...
96/03762 Abrasion resistance of high-strength concrete made with Class C fly ashアラミドロッドアラミド繊維正方形成形管耐震性能炭素繊維... - 《Fuel & Energy Abstracts》 被引量: 4发表: 1996年 Effect of fine aggregate replacement with Class F fly ash on the abrasion resistance of concrete...
The results revealed that as PFA: POFA mass ratio increased the workability and compressive strength of geopolymer concrete are increased, the ratio and concentration of alkaline solution increased, the compressive strength of geopolymer concrete increases with regards to curing condition. 展开 ...
cure. This review article aims to illustrate how these various parameters affect the compressive strength of fly ash-based geopolymer concrete (FAGPC). To accomplish this, an extensive dataset was gathered and analyzed. The results indicate that the compressive strength of FAGPC is mainly influenced...
A parametric study of post crack tensile strength in the strain softening model is conducted to demonstrate two sub-class behaviors: deflection softening and deflection hardening. Uniaxial and flexural test results of steel and glass fiber reinforced are selected to demonstrate the applicability of the...