effect of recycled coarse aggregate on concrete properties

Effect of Recycled Concrete Aggregate on Rutting and

Oct 10,  · Mechanical and Durability Properties of Recycled Aggregate Concrete: Effect of Recycled Aggregate Properties and Content Journal of Materials in Civil Engineering November New Mixture Proportioning Method for Concrete Made with Coarse Recycled Concrete Aggregate

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Effect of nano-strengthening on the properties and

The effect of recycled concrete aggregate properties on the bond strength between RCA concrete and steel reinforcement, Cem. Concr. Res., ,41(10),1037-1049. Search in Google Scholar [22] González-Fonteboa B.,Martínez-Abella F., Shear strength of recycled concrete beams, Constr. Build. Mater.,2007,21(4),887-893. Search in Google Scholar

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Top PDF Effect of Nano Silica and Metakaolin on Properties

In the first part of the study, the natural coarse aggregates are replaced by recycled coarse aggregates in varying percentages i.e. 25%, 50%, 75% and 100% to produce recycled aggregate concrete. In the second phase of study, the effect of replacement of cement by nano - silica and rice husk ash in varying percentages on the various strength

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Recycled Aggregates - Portland Cement Association

Recycled Aggregate Characteristics. The crushing characteristics of hardened concrete are similar to those of natural rock and are not significantly affected by the grade or quality of the original concrete. Recycled concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required

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PDF Effects of Recycled Coarse Aggregate Reinforcing Treated

Effect of Treated Recycled Coarse Aggregate on the Basic Performance of Recycled Concrete . At present, the secondary concrete is commonly prepared by the recycled coarse aggregate. In the experiment, the design strength of concrete was C30, The proportion of reference concrete was as below: cement(223kg/m. 3), fly ash (62kg/m. 3

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Properties of recycled aggregate and recycled aggregate

In the present investigation, an attempt was made to study the influence of the strength of parent concrete on the properties of recycled aggregates and recycled aggregate concrete. In this study, four grades of normal concrete mixes: M20, M25, M30, and M40 were considered as parent concrete to produce the recycled coarse aggregates and recycled aggregate concrete. Four recycled coarse

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PDF A Study on Recycled Concrete Aggregates

complete replacement of natural aggregates with recycled concrete aggregate ran ges from 11% to 33%. RCA can replace NA in the production of both non -structural and structural concrete. Patil.et.al. ( ), this study aimed to evaluate physical properties of concrete using recycled coarse aggregate. In this research, concrete waste fr om

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Effect of Adding Portland cement on the Characteristics of

range of 10.5-11.5MPa. In addition, it was noticed that the highest increase in the obtained mechanical properties of recycled geopolymer concrete containing Portland cement compared to geopolymer concrete with 100 % coarse aggregate, was achieved by using 25% of recycled coarse aggregate and 15% of Portland cement. The outcomes also

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Study report SR101 Effect of recycled concrete aggregate

There is an increase in the drying shrinkage of concrete made with recycled aggregates as compared with the same concrete made with aggregates. These effects on the properties of recycled aggregate concrete would be reduced if recycled coarse aggregate was used in combination with aggregates.

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Effect of Recycled Plastic Aggregates on Concrete

the use or recycled plastics as replacement of coarse aggregates in concrete. The main aim of the study is to investigate the change in mechanical properties of concrete with the addition of plastics in concrete. Along with the mechanical properties, thermal characteristics of the resultant concrete

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PDF Effects of Using Seawater and Recycled Coarse Aggregates

Using seawater and/or recycled coarse aggregates (RCA) for concrete mixing is deemed advantageous from a sustainability perspective. This paper reports on the results of an experimental study on fresh and hardened properties of concrete mixed with seawater and RCA. Three concrete mixtures were investigated, namely, Mix A (traditional concrete),

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PDF A Study on Effect of Bagasse Ash in the Properties of

aggregates and sieve investigation of the coarse aggregates 5. respectivelyScope of present Work The present aspect focus on the effects of bagasse ash on recycled coarse aggregate on both fresh and hardened properties of M20 grade of concrete, RCA is replaced with the NCA in proportion of 20%, 30% and 40% and cement

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Effect of recycled rubber aggregate size on fracture and

The size effect with coarse (15 mm tyre shreds) and fine (2-4 mm tyre crumbs) rubber aggregates on the fresh and mechanical properties of structural concrete, specifically its fracture properties, was investigated, incorporating preliminary testing and constitutive models. ..

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PDF Aggregates for Concrete

and show their effect on concrete properties. CHAPTER 3—AGGREGATE PROPERTIES AND TEST METHODS 3.1—Grading 3.1.1 Definition and test method—Grading refers to the distribution of particle sizes present in an aggregate. The grading is determined in accordance with ASTM C 136, "Sieve or Screen Analysis of Fine and Coarse Aggregates." A sample

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Effect of Recycled Concrete Aggregate Properties on

Jan 01,  · This study focuses on characterizing several recycled concrete aggregate (RCA) sources, developing concrete mixture proportions that incorporate RCA as coarse aggregate, and investigating the effect of coarse aggregate properties on the main mixture proportion parameters [i.e., cement content, water demand, and water–cement (w/c) ratio].

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PDF Evaluation of the Effect of Elevated Temperatures on

recycled aggregate concrete. Cakir [31] investigated that effect of inclusion of granulated blast furnace slag and silica fume in recycled aggregate concrete on its tensile splitting strength and the compressive strength. A reduction of approximately 24% in the compressive strength at a replacement ratio of 100% was observed.

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Top PDF The Effect of Different Types of Recycled Coarse

This research has been done by replacing the Coarse Aggregates by Recycled Coarse Aggregates and the addition of the Coconut Fiber is done in M20 concrete.Generally, M20 concrete is used for the household construction, therefore, M20 concrete was chosen. After replacement of Coarse Aggregates and addition of Coconut Fiber, the Physical Properties, i.e. Compressive Strength and Tensile Strength

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The Effect of Curing Conditions on Selected Properties of

The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete Anna M. Grabiec1, Daniel Zawal2, Waheed Adewale Rasaq3 1,2 Institute od Construction and Geoengineering, Piątkowska Street 94, Poznań University of Life Sciences, 60-649 Poznań, Poland 3 AQUAstone, Sycowska Street, 60-002 Poznań, Poland Corresponding author: Anna M. Grabiec [email protected]; tel. +48-606

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Effects of coarse and fine aggregates on long-term

Typical effects of coarse and fine aggregates on the long-term properties of sea sand recycled aggregate concrete (SSRAC) are analyzed by a series of axial compression tests. Two different types of fine (coarse) aggregates are considered: sea sand and river sand (natural and recycled coarse aggregates).

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Characteristic Properties of Concrete with Recycled Burnt

To counter the depletion of river sand and to reduce the menace caused by disposal of crushed brick wastes, the use of crushed bricks to produce a more environmentally sustainable and economical concrete is explored. This project studied the properties of concrete made using crushed burnt bricks as an aggregate in comparison with concrete made using natural coarse aggregates.

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Effect of Recycled Coarse Aggregate on Concrete Properties

When the researcher used 0% of Recycled Concrete Aggregate the value of flexural strength was 4.4 N/mm.Then, when the researcher added percentage of Recycled Aggregate to 35%, the result of flexural strength were decrease and the result were decrease again when the researcher added Recycled Aggregate into 50%.

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A Study on Effect of Bagasse Ash in the Properties of

A Study on Effect of Bagasse Ash in the Properties of Recycled Aggregate Concrete. The study presents a replacement of natural coarse aggregate (NCA) by recycled coarse aggregate (RCA) and cement by bagasse ash. The aggregate obtained from the construction and demolition waste for making a new concrete will have to give better stability same as

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Evaluation of Recycled Concrete for Use as Aggregate in

This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements. Recycled concrete aggregate (RCA) produced from demolished pavements in three geographically-dispersed locations in Washington state were used to perform testson aggregate characte ristics, fresh concrete propertiesand hardened concrete properties.

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Effect of robo sand on strength characteristic of recycled

Table 1 Properties of Aggregates Aggregate Specific gravity Recycled coarse aggregate (RCA) 2.65 Robo sand (RS) 2.29 2.5 Mix Design Property Value Required Characteristic compressive strength 30 MPa Maximum size of aggregate 20 mm Water Cement ratio 0.4 Degree of workability 0.90 Degree of quality control Good Type of exposure Moderate Mix

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Response and Modeling of Steel Tubes Filled with Recycled

The engineering properties of concrete with recycled aggregates (RAC) can vary more widely than normal aggregate concretes (NAC). Because concrete-filled steel tubes do not rely solely on the concrete in compression, using RAC in a concrete-filled steel tube (RACFST) is a sustainable structural solution.

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Effect of recycled coarse aggregate on physical and

In this paper, the effect of using recycled coarse aggregate (RCA) on the behavior of concrete is experimentally studied. The RCA is prepared by crushing and sieving of waste of standard compression test cubes having a compressive strength ranging between 25 MPa and 30 MPa.

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Effect of mixing methods of nano silica on properties of

The effect of presoaking of recycled coarse aggregate (RCA) in nano silica (NS) solution on the properties of recycled aggregates concrete is compared with the direct mixing of NS in concrete. In this study, four series of concrete are considered.

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Crush recycle Concrete as the coarse aggregate fraction in

Limbachiya et al (2000) found that recycled concrete aggregate had 7 to 9% lower relative density and 2 times higher water absorption than natural aggregate. According to their test results, it shown that there was no effect with the replacement of 30% coarse recycled concrete aggregate used on the ceiling strength of concrete.

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PDF Effect of Recycled Aggregate on Mechanical and Durability

Effect of Recycled Aggregate on Mechanical and Durability Properties of Concrete . Krishan Pareek . Department of Green Technology for Sustainability, Nanhua University, Chiayi County, Taiwan . Email: [email protected] . Srishti Saha, Nayan Gupta and Purnachandra Saha . School of Civil Engineering, KIIT Deemed to be University

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PDF A Review of Recycled Concrete Aggregates As a Sustainable

recycled concrete aggregates (RCA) [4]. Initially, the recycled aggregate (RA) was used for non-structural purposes such as fill material, base course material and foundations, however, modern research has shown that it is viable option to use recycled concrete aggregates to replace natural aggregates (NA) in structural concrete.

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Effect of recycled coarse aggregate on the properties of

The effect of recycled coarse aggregate (RCA) on the fresh and hardened properties of C40 self-compacting concrete (SCC) was investigated in this paper. The slump, T 500 (the time needed for SCC to spread into a round configuration with a nominal diameter of 500 mm), the slump flow and the flow time of fresh C40 SCC as well as the compressive

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