Properties Of Hpc With Recycled Aggregates Transport

Properties of HPC with recycled aggregates ScienceDirect

However, recycled aggregates are not suitable for use in the production of High Performance Concrete (HPC) due to their relatively high absorption capacity, unstable properties and recycled aggregates' weaker strength. Such inadequacies can be overcome through carefully examining the characteristics of recycled aggregates and then adopting

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Effects of using recycled concrete aggregates on the

2016-07-15· Over the past twenty years the use of Recycled Concrete Aggregate (RCA) has been mostly limited to normal-strength concretes. However, satisfactory properties have been found in previous studies dealing with the use of RCA sourced from medium to high strength concrete in the production of High Performance Concrete (HPC).

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Properties of HPC with recycled aggregates Request PDF

Properties of HPC with recycled aggregates. Article in Cement and Concrete Research 36(5):943-950 · May 2006 with 117 Reads How we measure 'reads' A 'read' is counted each time someone views a

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Influence of recycled aggregates on mechanical properties

Main mechanical properties of HSC made from recycled aggregate are presented in the paper and compared with series of corresponding concrete from new aggregates. The tests were done with use of different recycled aggregates obtained from original moderate- or high-strength concrete, 2–7 years old, crushed up to 3 months before use.

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Experimental analysis of properties of high performance

Experimental analysis of properties of high performance recycled aggregate concrete Article in Construction and Building Materials 52:227–235 · February 2014 with 203 Reads How we

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Influence of recycled aggregates on mechanical properties

Influence of recycled aggregates on mechanical properties of HS/HPC Article in Cement and Concrete Composites 24(2):269-279 · April 2002 with 164 Reads How we measure 'reads'

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Properties of recycled aggregate concrete made with

This paper presents the experimental results of a study on comparing the difference in properties of recycled aggregates (RAs) with varying amounts of old adhered mortar obtained from different sources and evaluating the influence of the different RAs on the mechanical and durability properties of recycled aggregate concrete (RAC).Four concrete mixes (one with natural aggregate and three

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Evaluation of Concrete Strength Made with Recycled Aggregate

The construction industry consumes enormous quantities of concrete, which subsequently produces large amount of material waste during production and demolishing. As a result, the colossal quantity of concrete rubble is disposed in landfills. This paper, therefore, evaluated the feasibility of reusing waste concrete as recycled aggregate (RA) to produce concrete.

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STUDY THE MECHANICAL PROPERTIES OF HPC CONTAINING

A series of investigations on the mechanical property, durability, and the structural performance of recycled aggregate concrete (RAC) have been carried out in the past 15 years (1996–2011) in

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Influence of amount of recycled coarse aggregates and

Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete Article in Cement and Concrete Research 37(5):735-742 · May 2007 with 541 Reads

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Structural behaviour of prestressed concrete sleepers

aggregates consumption, as well as reducing14 transportation costs and detrimental environmental impact. Several types of recycled aggregates can be obtained from C&DW. Recycled Concrete Aggregates (RCA) has been reported as the recycled aggregate type with the most suitable physical and mechanical properties. The predominant composition of

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High Performance Concrete with SCM and Recycled Aggregate

In the article the possibility of utilization of two waste materials: Recycled Concrete Aggregate (RCA) fraction 4-16 mm and Class F fly ash (from coal burning power plant) in high perfor-mance concrete (HPC) was presented. Concrete with RCA were made with varying amount of cement and Suplementary Cementing Materials (SCM). The specimens of concrete were tested to compare mechanical properties

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INFLUENCE OF RECYCLED AGGREGATES ON MECHANICAL PROPERTIES

INFLUENCE OF RECYCLED AGGREGATES ON MECHANICAL PROPERTIES OF HS/HPC. Recently, aggregates derived from demolished concrete structures were of relatively low strength, and applications were of secondary importance. Since a short time, the necessity of demolition of structures with strong concrete, like building frames or bridge beams, has

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Properties and Usability of HPC with Recycled Aggregates

Properties and Usability of HPC with Recycled Aggregates. Formerly, the strength of aggregates derived from demolished concrete structures was relatively low, therefore, the applications were of secondary importance. At present, the common necessity of demolition of structures with strong concrete, like building frames or bridge beams, creates

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Structural behaviour of prestressed concrete sleepers

aggregates. The physical properties of the natural and recycled aggregates are shown in Table 1. 109 The coarse natural aggregates had higher density and lower water-absorption than the recycled concrete 110 aggregate, a fact also reportedin several studies . However[2, 3,

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Properties of HPC with recycled aggregates TRID

Properties of HPC with recycled aggregates. The utilization of recycled aggregates can minimize environmental impact and slow the huge consumption of natural resources used for concrete applications. However, recycled aggregates are not suitable for use in the production of High Performance Concrete (HPC) due to their relatively high absorption

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Properties of HPC with recycled aggregates DeepDyve

2006-05-01· Read "Properties of HPC with recycled aggregates, Cement and Concrete Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Rheological Properties of Recycled Aggregate Concrete

Rheological Properties of Recycled Aggregate Concrete Using Superplasticizers 593 Standard. Los Angeles test results indicate values of 25% and 15% respectively for recycled aggregates and natural aggregates. Both aggregates can then be considered of Category A, the best one. 2.2.2 Concrete and Mortar Compositions

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What are recycled and secondary aggregates

What are recycled aggregates? Recycled aggregates come from reprocessing materials that have previously been used in construction. There are two methods of producing recycled aggregate: at the site of the source the benefits of this include saving on transport costs and the environmental benefits of reducing lorry movements; in a central plant

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Durability performance of high-performance concrete made

Tu et al. also observed that the loss of performance of HPC in which only recycled aggregates were used was more pronounced than in those using coarse recycled aggregates and natural sand. However, the two groups were able to achieve results comparable to their reference HPC. In our investigation, the maximum differences (in absolute terms), relative to the corresponding RC, did not exceed 1.7

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Experimental analysis of properties of high DeepDyve

2014-02-15· Read "Experimental analysis of properties of high performance recycled aggregate concrete, Construction and Building Materials" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Properties of high-workability concrete with recycled

ABSTRACT. This study presents the effects of recycled concrete aggregate (RCA) on the key fresh and hardened properties of concrete. RCA was used to produce high-workability concrete substituting 0-100% natural coarse aggregate (NCA) by weight.

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Mechanical Properties Of Recycled Aggregates Concrete

2.6 Recycled Concrete as Aggregate for Structural Concrete Production. A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper.

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Flexural Strength Properties of Recycled Aggregate Concrete

2016-05-05· transportation cost and promote the sustainable development. Hence its need to study the structural properties of recycled aggregate concrete. Recycled aggregate are easily available and economical compared to other natural resources. Demolished structures, site tested concrete, pile cap demolished concrete are the good sources of recycled aggregate. This paper presents the findings

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Effect of Different Curing Regimes on Strength and

Effect of Different Curing Regimes on Strength and Transport Properties of UHPC Containing Recycled Steel Tire Wires as Micro Steel Fibers 3 Esmaeili, J and Kasaei, J strength and transport properties. These curing regimes and the specimens’ designation are presented at Table 3. The cementitious materials and sand were first mixed at the low

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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

the recycled aggregate comes from many different sources, the uneven quality, i.e. variations in the properties of recycled aggregate are much more pro-nounced than as is the case with natural aggregates. Figure 2. Appearance of the recycled aggregate grains [2] 2.1. Aggregate grading Grading of recycled coarse aggregate

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Tu Tsung-Yueh, Chen Yuen-Yuen and Hwang Chao-Lung

Recycled aggregates are still not conventionally used in the construction industry but still a lot of work has been done on recycling of hardened concrete and continuous improvements are required to optimize this. Some of the research studies on the properties, uses, shortcomings and behavior of recycled aggregate have also been highlighted.

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Strength and Durability Evaluation of Recycled Aggregate

2015-05-14· The main objectives of the experimental program were to (i) investigate variability of recycled aggregate properties and their impact on concrete production and (ii) evaluate properties of concrete prepared with 100 % recycled aggregate. Therefore, the experimental program was divided into two phases; Phase 1 deals with evaluation of the aggregate properties and Phase 2 focuses on

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Recycled Aggregates cement

Recycled concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required of conventional aggregates. Recycled concrete aggregates contain not only the original aggregates, but also hydrated cement paste. This paste reduces the specific gravity and increases the porosity compared to

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Advances in Materials Science and Engineering Hindawi

Advances in Materials Science and Engineering is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of materials

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