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recycled aggregate workability

recycled aggregate workability | Industry News

Evaluation of Recycled Concrete for Use as Aggregates in New Portland Cement Concrete Pavements

Research Report Research Project T4120-32 Evaluation of Recycled Concrete WA-RD 826.1 EVALUATION OF RECYCLED CONCRETE AS AGGREGATE IN NEW CONCRETE PAVEMENTS By Haifang Wen David I. McLean Assistant Professor ...

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Recycling of Brick Aggregate Concrete : An Extended Study on Some Key Issues

Cement Paste and Polymer Cement Paste Coated Aggregates To improve workability of recycled aggregate concrete, some recycled aggregate were coated with cement paste and some were coated with polymer cement paste. To increase the thickness of ...

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FIBRE CONCRETE WITH RECYCLED AGGREGATE – MASONRY AND CONCRETE

recycled coarse aggregate produces acceptable quality concrete. Use of recycled fines, however, in a new mix requires close examination. Recycled fine aggregate is angular, with a high porosity and low specific gravity. Using recycled fines further reduces strength ...

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Use of Rubber Particles from Recycled Tires as Concrete Aggregate for Engineering Applications | Sara Sgobba - Academia.edu

Academia.edu is a platform for academics to share research papers. ... Coventry University and The University of Wisconsin Milwaukee Centre for By products Utilization, Second International Conference on Sustainable Construction Materials and Technologies ...

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Study on the Workability and Mechanical Properties of Recycled Aggregate Concrete Containing Ultra-Fine Fly Ash

Environmental Ecology and Technology of Concrete: Study on the Workability and Mechanical Properties of Recycled Aggregate Concrete Containing Ultra-Fine Fly Ash ... Periodical Key Engineering Materials (Volumes 302 - 303) Main Theme

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DOI: 10.1590/S1516-14392011005000039 Properties of High-Workability Concrete with Recycled Concrete Aggregate

Properties of High-Workability Concrete with Recycled Concrete Aggregate by testing Ø100 × 50 mm cylinder specimens according to the test procedure described in Safiuddin and Hearn31. Triplicate specimens were used in all tests. 4. Results and Discussion 4 ...

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Green recycled aggregate concrete - ScienceDirect.com | Science, health and medical journals, full

The paper presents results of experimental investigation of concrete made with recycled concrete aggregate, low cement content and high content of different min ... 1. Introduction By the end of the 20th century, sustainable development and environmental ...

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Concrete - Wikipedia, the free encyclopedia

Concrete is a composite material composed mainly of water, aggregate, and cement. Often, additives and reinforcements (such as rebar) are included in the mixture to achieve the desired physical properties of the finished material. When these ingredients are mixed together, they form a fluid mass that is easily molded into shape. Over ...

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SUITABILITY OF GLASS FIBERS IN HIGH STRENGTH RECYCLED AGGREGATE CONCRETE-AN EXPERIMENTAL INVESTIGATION

Archive of SID SUITABILITY OF GLASS FIBERS IN HIGH STRENGTH RECYCLED... 685 of glass fiber is increased. Also, the workability of concrete decreased as 50% of the natural coarse aggregate is replaced with RCA. The low workability of recycled aggregate ...

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Title of paper - (National Chung Hsing University)

Strength and Workability of Recycled Aggregate Concrete H.S. Peng, H.J. Chen & T. Yen Dept. of Civil Engineering, National Chung-Hsing University, Taichung, Taiwan ABSTRACT: Recycled aggregate concrete (RAC) has lower compressive strength and worse ...

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Review of Research on and Implementation of Recycled Concrete Aggregate in the GCC

The goal of sustainable construction is to reduce the environmental impact of a constructed facility over its lifetime. Concrete is the main material used in construction in the Gulf Cooperation Council (GCC). Therefore, it makes economic and environmental sense to ...

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3.1 Effect of recycled aggregate strength on recycle concrete | Follow Science

Download for free the file '3' in category '' - about: '3.1 Effect of recycled aggregate strength on recycle concrete' ... A place to share and follow research Submit an Article or ...

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THE ESTIMATION OF COMPRESSIVE STRENGTH OF NORMAL AND RECYCLED AGGREGATE CONCRETE

The Estimation of Compressive Strength of Normal and Recycled Aggregate Concrete 423 2.4. Aggregate In concrete technology, the relationship between water-cement ratio and strength is overemphasized. The influence of aggregate on concrete strength is not ...

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Thesis Abstract | Dissertation Abstracts Thesis Library - Recycling of Waste Concrete as Aggregate

ThesisAbstracts.com - free thesis abstract and dissertation thesis library - RECYCLED CONCRETE, RECYCLED AGGREGATE, C & D WASTE, MECHANICAL STRENGTH, WORKABILITY ... Thesis Abstract / Summary: The construction industry persists in a ...

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WORKABILITY AND COMPRESSIVE STRENGTH PROPERTIES OF CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATE - Transport Research ...- TRID

This paper describes two laboratory based experimental studies to determine some plastic and hardened properties of concrete incorporating recycled concrete aggregates. One study examined the effects that the cleanliness of recycled coarse aggregate particles ...

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Recycled Glass in Concrete - ConcreteIDEAS

Using Recycled Glass in Concrete Conventional concrete aggregate consists of sand (fine aggregate) and various sizes and shapes of gravel or stones. However, there is a growing interest in substituting alternative aggregate materials, largely as a potential use for ...

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Use of Recycled Aggregate Concrete - Home - Jordan Engineers Association Conferences Website

Use of recycled concrete rubbles as coarse aggregate in concrete Hisham Qasrawi1, Iqbal Marie2 & Hasan Tantawi3 1 Senior lecturer, Civil Engineering, Faculty of Engineering, The Hashemite University 2 Senior lecturer, Civil Engineering, Faculty of Engineering ...

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Performance Evaluation of Recycled Aggregate Concrete

First International Conference on Emerging Trends in Engineering, Management and Scineces” December 28-30, 2014 (ICETEMS-2014) Peshawar, Pakistan Performance Evaluation of Recycled Aggregate Concrete Sajjad Ali Lecturer, University of engineering and ...

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Mechanical Properties Of Recycled Aggregates Concrete

Figure 4. 3 grading of recycle aggregate 4.5.2. Specific gravity and absorption test The specific gravity and absorption test were carried out as per specifications. Bulk specific gravity was found to be 2.70 and absorption after 24 of soaking was .92% 4.5.3 Moisture ...

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Use of Recycled Concrete Aggregate in PCCP: Literature Search

3. RECIPIENT'S CATALOG NO. WA-RD 726.1 4. TITLE AND SUBTITLE 5. REPORT DATE Use of Recycled Concrete Aggregate in PCCP: Literature Search June 2009 6. PERFORMING ORGANIZATION CODE 7. AUTHOR(S) 8. PERFORMING ...

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Recycled Aggregates - PCA - The Portland Cement Association - America's Cement Manuf

Construction materials are increasingly judged by their ecological characteristics. Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new ...

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WORKABILITY STUDY FOR RECYCLED AGGREGATES

IOSR Journal of Engineering May. 2012, Vol. 2(5) pp: 1040-1044 ISSN: 2250-3021 www.iosrjen.org 1044 | P a g e All other properties of aggregates (i.e. aggregate crushing value, aggregate impact value, aggregate abrasion value etc) were showing ...

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Water retention capability of mortars made of recycled aggregate - ResearchGate

ABSTRACT Summary The paper presents results of a study aimed to analyze the applicability of fine fraction of recycled aggregate (RA) in mortar. Mortars were tested for their workability assessed as flow and for their capability to retain mix water when placed on ...

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Influence of parent concrete on the properties of recycled aggregate concrete

The relatively higher water absorption characteristics of recycled aggregate necessitate careful adjustment in water content in order to obtain the desired workability of RAC and to eliminate variation in water–cement ratio in different mixes. Hence, trial workability ...

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Summary of Texas Recycled Concrete Aggregate Review - Recycling - Pavements - FHWA

Summary of Texas Recycled Concrete Aggregate Review April 20-25, 2003 As a member of a resource-intensive industry, Texas DOT (TxDOT) realizes that while most of the raw materials for roadway construction are available in sufficient quantities to develop and ...

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Recycled Concrete as Aggregate for Structural Concrete Production

Sustainability 2010, 2, 1204-1225; doi:10.3390/su2051204 sustainability ISSN 2071-1050 www.mdpi.com/journal/sustainability Article Recycled Concrete as Aggregate for Structural Concrete Production Mirjana Malešev 1, Vlastimir Radonjanin 1 and Snežana ...

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Recycling of Aggregates from Construction Demolition Wastes in Concrete: Study of Physical and Mechanical Properties

Fig. 6 Workability of concretes 3. Compressive and Flexural Strength of Concretes Tricalcium acuminate C3A cement gives a very good initial resistance to 2 days. In addition, the majority of tricalcium silicate hydrate and 28 days to form new components (hydro

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Materials Research - Properties of high-workability concrete with recycled concrete aggregate

Properties of high-workability concrete with recycled concrete aggregate Md. Safiuddin I, *; Ubagaram Johnson Alengaram II; Md. Abdus Salam II; Mohd Zamin Jumaat II; Fahrol Fadhli Jaafar II; Hawa Binti Saad II I Department of Civil and Environmental ...

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Transportation Applications of Recycled Concrete Aggregate

The purpose of this review was to capture the most advanced uses of recycled concrete aggregate (RCA) for transportation uses in the United States. This knowledge would then be transferred to all State Transportation Agencies (STA) in the United States through

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