详情

原文传递 FATIGUE ANALYSIS OF SILICA FUME AND GGBS ADMIXED CONCRETE PAVEMENT OF SINGLE AND COMPOSITE SECTION

题名：	FATIGUE ANALYSIS OF SILICA FUME AND GGBS ADMIXED CONCRETE PAVEMENT OF SINGLE AND COMPOSITE SECTION
正文语种：	eng
作者：	Sagar Kamble;H. S. Jagadeesh
作者单位：	Department of Civil Engineering BMS College of Engineering Bengaluru;Department of Civil Engineering BMS College of Engineering Bengaluru
摘要：	Due to the rapid increase in traffic and travel demand, there is always a need for improvement in the construction of rigid pavements. Rigid pavements can bear high magnitudes of loads coming onto them but they have economic and environmental constraints. Cement is known to harm the environment by emitting carbon dioxide into the atmosphere. Hence in the past few decades, researches on replacing cement partially with waste powders to make it economical and sustainable have been carried out. Along with that pavement should be strong enough to resist a repeated number of loads coming onto them throughout the life period. So, a pavement section consisting of two different concrete layers known as the composite section is proposed. The utilization of silica fume significantly affected ventures, capacity to regularly and industrially produce silica fume changed cement of stream capable in nature yet stay firm, which thusly creates high early and later age strength including impervious to forceful conditions. GGBS is a result in the steel producing industry and it very well may be utilized as an elective material to OPC because of its intrinsic restricting properties. In the present study, Silica Fume and GGBS are used to examine the strength of the concrete. 12% of the cement is replaced by Silica Fume in the concrete mix containing Silica Fume. In the concrete mixes containing GGBS, 30% of the cement is replaced by GGBS for studying the changes in the strength of 1V140 grade of concrete. An exploratory program was done on single and composite sections to investigate their strength properties by compressive strength test, flexural strength test and flexural fatigue test. Specimens are cured for a period of 7 days and 28 days before performing tests on them. Various strength properties of the concrete are examined by conducting tests like compression and flexural strength tests on the concrete cubes and beams, after 7 and 28 days of curing period. A fatigue test is then performed on beams for various stress ratios like 0.85, 0.75, and 0.65. It is concluded from the study that composite concrete sections can withstand higher number of load repetitions compared to conventional concrete.
出版年：	2023
期刊名称：	Indian Highways
卷：	51
期：	10
页码：	31-36