“Coconut Shell as Partial Replacement of Coarse Aggregate in Concrete” - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. partial replacement of coarse aggregate
aggregates, such as crushed limestone and gravel, while the demolition of old concrete structures offers significant sourc-es of recycled concrete aggregate (RCA). Currently, RCA use in the United States is largely limited to nonstructural applications, such as road base. Uncertainty and variability
Recycle Concrete Aggregate (RCA) is the main components of old concrete and for many reasons there is a need to re-use them. It is better to the reuse of waste aggregates as recycled aggregates in structural concrete, instead of throwing out as a total wa Learn
recycled fine aggregate and recycled coarse aggregate. It also compares these properties with natural aggregates. Basic changes in all aggregate properties were determined and their effects on concreting work were discussed at length. Similarly the properties of recycled aggregate concrete were also determined and explained here.
Dec 12, 2013 · This article investigates the properties of a new generation concrete containing fiber reinforced polymer (FRP), fiber scrap aggregate (FSA), and recycled concrete aggregate (RCA). Although previous research has been undertaken for the use of RCA in concrete, the use of FSA is a new research area and has been found in this study to have ...
A feasibility study of usage of FRCA (up to 100% replacement of natural fine aggregate) in high-performance concrete such as self-consolidation concrete (SCC) is needed. This paper presented a preliminary study in using FRCA to obtain SCC with comparable properties as such of using natural fine aggregate.
Cement was replaced by bone powder ash and wood ash in the ratios: 0%, 5%, 10%, 15%, 20%, 25%. Where the 0% represents the control sample which consists of only cement, fine aggregate and coarse aggregate in the ratio 1:2:4, The batching of concrete tests samples was by weight in
Once fly ash has been processed, it is ready to move on to be used in the production of various concrete products. Conclusion. The use of fly ash as a lightweight aggregate (LWA) offers a valuable opportunity to recycle one of the largest waste streams in the US.
In this new type of concrete, recycled aggregates from construction and demolition (C&D) waste were used as coarse aggregates, and granulated blast furnace slag (GGBS) and fly ash-based geopolymer were used to totally replace the cement in concrete. This study focused on the sulfate resistance of this geopolymer recycled aggregate concrete (GRAC).
May 14, 2015 · This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete. In general, the quality of ...
International Journal of Science and Research (IJSR) is published as a Monthly Journal with 12 issues per year. Influence of Fly Ash on the Performance of Recycled Aggregate Concrete International Journal of Science and Research (IJSR)
of concrete in Minnesota made with recycled D-cracking aggregate indicated a greatly reduced potential for D-cracking when fly ash was used in the mixture.(1) Resource Conservation . Reduced land disposal and dumping: The use of recycled concrete pavement eliminates the development of waste stockpiles of concrete.
recycled aggregate weakens the quality of recycled aggregate concrete which limits its application. For improving the quality of recycled coarse aggregate, various surface treatment methods such as washing the recycled aggregates with water and diluted acid were investigated. Strength properties of the treated and
Experimental Study of Compressive Strength of Recycled Aggregate Concrete - written by Yati R. Tank, Jigar P. Parmar, Darpan H. Gadhiya published on 2014/04/25 download full article with reference data and citations
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This research aimed to use of bagasse ash as a cement replacement in high-strength recycled aggregate concrete (HS-RAC). Crushed limestone was replaced with 100% recycled concrete aggregate (RCA) and the ground bagasse ash (GBA) was used to partially replace ordinary Portland cement (OPC) at 20, 35 and 50%wt of binder to cast HS-RAC.
recycled aggregate and fly ash and slag. Slag and fly ash was used as a replacement for cement in large volumes. From the study it was found that adding slag to recycled aggregate concrete helped to control the strength of concrete. Corinaldesi et.al  studied the effect of mineral additions on concrete containing 100% recycled aggregates.
Dec 19, 2014 · IJRET: International Journal of Research in Engineering and Technology. eISSN:2319-1163 | pISSN: 2321-7308. STUDY OF CORROSION OF REINFORCED STEEL BARS IN RECYCLED AGGREGATE CONCRETE WITH FLY ASH ...
The reutilization of waste concrete and fly ash produced by power plant is one way to develop green concrete. The addition of fly ash in recycled aggregate concrete has two methods, named equivalent replace and super-substitute technique.
6 Use of Recycled Aggregates in Construction 1 INTRODUCTION 1.1 General There is increasing demand and interest in aggregates from non-traditional sources such as from industrial by-products and recycled construction and demolition (C&D) wastes.
STUDY ON THE PERMEABILITY OF THE RECYCLED AGGREGATE CONCRETE USING FLY ASH V. Bhikshma, Osmania University, India K. Divya, Osmania University, India 37th Conference on OUR WORLD IN CONCRETE & STRUCTURES: 29 - 31 August 2012,
A Review on Recycled Aggregates for the Construction Industry. American Journal of Civil Engineering and Architecture , 4 (1), 32-38. Karim, Yasir, Zubair Khan, Mohammad S. Alsoufi, and Mohammed Yunus.
In order to curb these concerns, the cement and concrete industry could be an ideal home for construction and industrial wastes. Recently, waste materials such as crushed concrete, asphalt pavement and crushed glasses are some of the recycled materials which have been used as a coarse and/or ﬁne aggregate in concrete production [17,18].
Global Concrete Volume • All Uses = • 11 Billion tons • 5.3 Billion cubic yards • Berkeley California 2016 • Thermal Management Required • Mass Pour, thick non-mass pour placements > 2ft thick, Hi strength/hot loads total to 10 - 15% of usage • 1.65 Billi
It I finally conclude that the recycled concrete aggregate can be successfully used in the construction field and the recycling rate of waste concrete and flay ash should be increased without ...
The same replacement ratios were used in Type II but with only 100% RA. In Type III, a total of four concrete mixes made with a high volume fly ash (FA) cement with 40, 50, 60, and 70% replacement of OPC. The paper provides information on the mix design, full
UNIMAS E-Journal of Civil Engineering, Vol. 1: issue 1 /August 2009 1 Abstract In this rapid industrialised world, recycling construction material plays an important role to preserve the natural resources. In this research, recycled concrete aggregates (RCA) from site ...
ties of flowable fill and concluded that the wood ash could be successfully used in flowable fill. Another benefi-cial application is to use the wood ash as a cement replacement, a mineral admixture, or an aggregate filler in concrete. Various studies have been conducted to evaluate the influence of wood ash additions on concrete
The approach taken was to make material substitutions so that the environmental, energy and CO 2-impact of concrete could be reduced. This was accomplished by partial replacement of cement with large volumes of fly ash or blast furnace slag and by using recycled concrete aggregate. Five basic concrete mixes were considered.
In this study, the physical, mechanical, and thermal properties of pressed geopolymer concrete (PRGC) mixed with recycled concrete aggregate (RC) and recycled concrete block aggregate (RB) were investigated. Lignite coal fly ash, sodium hydroxide solution ...
Shear behavior of a reinforced concrete (RC) beam designed without transverse reinforcement is significantly influenced by the properties of concrete. This pape Title: Shear Behavior of Fly-Ash-Incorporated Recycled Aggregate Concrete Beams Author(s): Sushree Sunayana and …
7 T. C. HANSEN , and E. BØEGH Elasticity and drying shrinkage of recycled aggregate concrete, Journal of the American Concrete Institute, 82 ( 5), pp. 648- 652, 1985. 8 F. T. OLORUNSOGO , and N. PADAYACHEE Performance of recycled aggregate concrete monitored by durability indexes, Cement and Concrete Research, 32 ( 2002) 179- 185.
Sep 21, 2018 · In this research the natural coarse aggregate is replaced with recycled coarse aggregate. Fly ash needed as material addition to improve concrete quality. The purpose of this research is to know the effect of the using percentage of recycling coarse aggregate, the percentage of fly ash and water-cement ratio to the compressive strength of concrete.
14. M. Limbachiya M. S. Meddah Y. Ouchagour. “Use of recycled concrete aggregate in fly-ash concrete” Construction and Building Materials 27 439-449 2012. 15. R. M. Salem E. G. Burdette. “Role of chemical and mineral admixtures on the physical properties and frost resistance of recycled aggregate concrete” Materials Journal 95 558-563 ...
Dec 02, 2013 · Five different concrete mixes were produced; three recycled aggregate concrete viz with 50%, 75% and 100% recycled aggregates with fly ash, and two natural aggregate concrete mixes with and without fly ash, respectively. Triple mixing method was adopted for making of recycled aggregate concrete.
This paper presents mechanical and durability properties of geopolymer concrete containing recycled coarse aggregate (RCA). The RCA is sourced from local construction and demolition (C&D) waste in Perth, Australia. The RCA is used as a partial replacement of ...
2020/1/1 · Shear behavior of a reinforced concrete (RC) beam designed without transverse reinforcement is significantly influenced by the properties of concrete. This pape Title: Shear Behavior of Fly-Ash-Incorporated Recycled Aggregate Concrete Beams Author(s): Sushree Sunayana and …
Journal of Engineering Research and Studies E-ISSN 0976-7916 JERS/Vol.II/ Issue I/January-March 2011/1-9 Review Article ASSESSMENT OF RECYCLED AGGREGATE CONCRETE Parekh D. N.1 and Dr. Modhera C. D.2 Address for
Kho Pin Verian and Jan Olek, Using Recycled Concrete as Aggregate in Concrete Pavements to Reduce Materials Cost, FHWA/IN/JTRP- 2013/18. Renga Rao Krishnamoorthya, and Dr. Thevaneyan Krishta David, Repair of Deteriorating Pavement Using Recycle Concrete Materials, Science Direct, Procedia Engineering 142 ( 2016 ) 371 382.