Shrinkage and creep characteristics of concrete are significant factors in the design of prestressed concrete structures. With large scale/span concrete structures developed, the fly ash or other blends are added into high strength concrete to improve the mechanical properties and workability. As a ...
The observed behavior of concrete is reported and the possible theoretical treatments are discussed with an eye to their satisfying the practical demand for an optimum between simplicity and reality. Some general characteristics of creep are first described, then the creep-stress-time under load-age ...
The creep characteristics and internal relative humidity (IRH) of concrete with shrinkage reducing admixtures (SRA), poly vinyl alcohol fiber (PVAF) and a mixture of fly ash and slag (MFS) were investigated by the self-made loading device. The pore structure was tested, and the relationship of...
4.8.1 Characteristics of Harper-Dorn Creep In 1950's, a creep behavior differing from the power law creep in some metallic materials was found under very low stress and high temperature. The basic characteristics of this creep behavior is that the creep rate is proportional to the applied stres...
Fibers in asphalt concrete are known for enhancing its strength and fatigue characteristics while increasing ductility. Additionally, fibers may increase t... A Garcia,Jose Norambuena-Contreras,Manfred N. Parti,... - 《Construction & Building Materials》 被引量: 54发表: 2013年 Investigation of asph...
Numerical Simulation of the Creep Characteristics of Interlayer Zone of Fiber Reinforced Composites by Indentation Test Method 压痕法确定纤维复合材料界面影响区蠕变特性的数值模拟法 www.ilib.cn 6. Calculation Analysis of the Creep Characteristics of Reinforced Concrete T-section Beams Strengthened with CFRP...
compressive cylinder strength of concrete f ck is developed as a main parameter. This crude assumption may not meet the desired reliability but simplifies the approach to a large extent. In creep prediction, the only characteristics necessary to declare are compressive strength f ck , dimensio...
Using thermal imagings in the study of periglacial forms and processes Periglacial morphogenetic domain is marked by the presence of landforms whose genesis and evolution is closely related to thermal conditions. It goes without saying therefore of interest to know the thermal characteristics of these ...
This study investigates restrained slabs stress-strain characteristics and tensile creep behavior in axially restrained concrete specimens which represent field conditions of actual structures. A modified tensile creep compliance function is used to account for the high viscous effect with restrained ...
In mass concrete structures, such as concrete dams, creep can reduce the temperature stress as well as delay cracking, and it is thus an important factor that cannot be neglected when calculating the thermal stress of concrete dams [1]. In order to study the creep characteristics of concrete,...