·Journal of Building Engineering Volume 52 15 July 2022 104452 For recycled concrete aggregate from concrete waste the use of up to 90% of recycled aggregate is allowed if water absorption is at most equal to 10% and content of contaminants up to %; meanwhile for recycled concrete aggregate from demolition waste the content of
Using multilinear correlation analysis the influences of these aggregate characteristics and other parameters on the properties of recycled aggregate concrete were evaluated The results showed that the performance of the concrete containing each type of RA was largely influenced by the aggregate nature and quality in addition to attached
·Recycling concrete construction waste is a promising way towards sustainable construction Indeed replacing natural aggregates with recycled aggregates obtained from concrete waste lowers the environmental impact of concrete constructions and improves natural resource conservation This paper reports on an experimental study on mechanical and
·In recent years the use of natural fibers in concrete has gained considerable attention due to their potential as a sustainable alternative to conventional steel reinforcements This paper investigates the strength performance of natural fiber reinforced recycled aggregate concrete using copper slag as a replacement for fine aggregate The natural fibers used in this
·the recycled aggregate The use of recycled aggregate generally increases the drying shrinkage creep & porosity to water & decreases the compression strength of concrete compared to that of natural aggregate concrete It is nearly 10 30% as per replacement of aggregate Recycling reduces the cost LCC by about 34 41% & CO 2 emission LCCO 2
·Decreasing natural resources of coarse & fine aggregates and growing issues with trash management assistance the beneficiation of trash materials The quality and uniformity of the recycled aggregate and the concrete generated from it are clearly influenced by the degree of processing and the original concrete s quality according to research on recycled aggregate
·In this study the effects of different contents of Nano SiO2 NS on a slump compressive strength splitting tensile strength flexural strength hydration products and microstructure of recycled fine aggregate concrete RFAC were investigated The results show that the addition of recycled fine aggregate RFA has a significant negative impact on the
·Since recycled aggregate offers an alternative to conventional natural concrete its potential to contribute to a sustainable future has been examined through experimental activity
·Journal Suggester; Open access publishing; We re here to help Find guidance on Author Services Home All Journals Journal of Civil Engineering and Management List of Issues Volume 19 Issue 6 The use of recycled concrete aggregate RCA in concrete as partial and full replacements of natural coarse aggregate is growing interest in the
·Concrete recycling to produce aggregates is crucial in reducing the demand for virgin materials in the construction industry particularly for the most widely used building material—concrete A potential solution to enhance the quality of recycled aggregates involves the removal of the adhered cement paste from their surfaces In this study samples of industrial
·Five types of waste materials were used in this project including recycled concrete coarse aggregate RCCA recycled concrete fine aggregate RCFA crushed glass CG crumb rubber CB and ground granulated blast furnace slag GGBS Using either RCCA or RCFA can decrease the blocks strength and increase their water absorption
·Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers or important in the respective research area Smith Recycled Concrete Aggregate A Viable Aggregate Source for Concrete Pavements Dissertation Department of Civil Engineering University
·In this paper a comprehensive literature review was conducted on the utilization of recycled concrete aggregate RCA which is the dominant construction and demolition waste material in base and subbase layers
·In recent years the use of natural fibers in concrete has gained considerable attention due to their potential as a sustainable alternative to conventional steel reinforcements This paper investigates the strength performance of natural fiber reinforced recycled aggregate concrete using copper slag as a replacement for fine aggregate The natural fibers used in this
·This study investigates the potential of incorporating recycled fine aggregates RFA into sustainable concrete In this research a conventional compaction technique is utilized to establish the order of compressive strength and consequently to assess particle packing density in terms of weight within a specific cylindrical volume and evaluate workability
·Waste reduction and decreasing the need for natural aggregate are significant environmental factors that should be taken into consideration Both can be achieved by incorporating recycled concrete aggregate into fresh concrete mixes Most previous studies on concrete incorporating recycled concrete aggregates mainly examined recycled coarse
In the global construction industry with the growth of population two important construction problems have to be faced namely the excessive consumption of non renewable resources and the massive accumulation of construction waste In order to solve these problems geopolymer recycled aggregate concrete GRAC arises at the historic moment On the one hand using
Dr Xiao s main areas of research are in the material behavior and structural performance of recycled aggregate concrete aspects he has been exploring for the past 15 years He is the author or co author of more than 300papers on material properties and material behavior interfacial layer mechanisms and modeled recycled aggregate concrete
·Recycled concrete is a green material composed of natural aggregate and recycled aggregate mixed with cementing material and water in a certain ratio The random distribution of aggregate in concrete has a great impact on material properties due to its supporting effect In order to explore the characteristics of aggregate and the influence of its
·The use of recycled concrete aggregate RCA in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry as it reduces the demand for
·Recently studies on multiple recycling of concrete have been attracting attention In general multiple recycling increases adhered mortar content of aggregate consequently the water absorption of the multiple recycled aggregate is increased and the slump of concrete with the multiple recycled aggregate is reduced Therefore this study attempted to offset the slump
·This work is devoted to the study of fresh and hardened properties of concrete containing recycled gravel Four formulations were studied the concrete of reference and three concretes containing recycled gravel with 30 65 and 100 % replacement ratios All materials were formulated on the basis of S4 class of flowability and a target C35 class of compressive
· Recycled coarse aggregate The secondary aggregates are termed normally as recycled coarse aggregate Recycled concrete aggregates are fragments and pieces of concrete buildings which are demolished or rebuild Recycled coarse aggregate contains original aggregate attached with mortar The attached mortar is light and porous in nature
·The addition of fibers to strengthen recycled concrete can strengthen the inherent deficits and deficiencies of concrete containing recycled aggregates to some extent and enlarge the concrete s application range In order to further promote the development and application of fiber reinforced brick aggregate recycled concrete the research results regarding its
