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Recycled Aggregates

Recycled Aggregates

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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 ...

Recycling of concrete in new structural concrete

Recycling of concrete in new structural concrete

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2017 (English) In: Nordic Concrete Research, ISSN, no 56, p. 8399 Article in journal (Refereed) Published Abstract [en] Sweden's concrete waste is recycled for use in lowutility purposes such as in the construction of subbases in roads but hardly as aggregates in new concrete.

Optimization of Recycled Aggregate Concrete

Optimization of Recycled Aggregate Concrete

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IRE ICONIC RESEARCH AND ENGINEERING JOURNALS 14 Optimization of Recycled Aggregate Concrete B Suguna Rao1, Govindagowda G2, Srikanth M. Naik3 1Assistant Professor in Civil Engineering Dept. MSRIT, Bengaluru. 2 (Structural Engineering), Civil Dept. MSRIT, Bengaluru. 3 Professor in ...

EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON ...

EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON ...

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 · EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON PROPERTIES OF CONCRETE. a (Corresponding author), Email address: . Journal of Green Building (2020) 15 (2): 57–69. Daniel Hatungimana, Şemsi Yazıcı, Ali MardaniAghabaglou; EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON PROPERTIES OF CONCRETE.

Investigations on Concrete with Recycled Concrete as ...

Investigations on Concrete with Recycled Concrete as ...

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aggregate and recycled aggregates are characterised. The experimental investigation was done on different grades of concrete (M25 and M35). A control specimen was created with 0% of recycled aggregates and this specimen was compared with different concrete mixes of different percentages of recycled aggregates. Recycled coarse aggregate is

Utilization of Completely Recycled Fine Aggregate for ...

Utilization of Completely Recycled Fine Aggregate for ...

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 · Use of recycled aggregates in molded concrete bricks and blocks. Construction and Building Materials, 16(5), 281–289. Article Google Scholar Seo, T.S., Lee, M.S. (2015). Experimental study on tensile creep of coarse recycled aggregate concrete. International Journal of Concrete Structures and Materials, 9(3), 337–343.

Effect of Flyash on Recycle Coarse Aggregate Concrete

Effect of Flyash on Recycle Coarse Aggregate Concrete

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aggregate. Recycle Aggregate: It is obtained from demolition of concrete cubes at the concrete testing laboratory. Figure 1: Grade Curve. Methodology IS: 10262:2003 is used for mix designing and water cement ratio is taken. The recycle coarse aggregate is added in 0%, 20%, 30%, 40%, 50% and 100% with the mix.

The Utilization of Recycled Aggregate in High Performance ...

The Utilization of Recycled Aggregate in High Performance ...

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 · The slump test is the common and practical workability test for fresh concrete and is performed in accordance with ASTM C143 . Fig. 1 shows the slump values for HPCs that are prepared with natural aggregate (b) and RA (c). The maximum detected slump value of HPC without RA was 185 mm .Previous studies, however, had demonstrated that completely replacing natural aggregate with .

A Review on Recycled Aggregates for the Construction Industry

A Review on Recycled Aggregates for the Construction Industry

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A Review on Recycled Aggregates for the Construction Industry. Yasir Karim 1, Zubair Khan 2, Mohammad S. Alsoufi 3, Mohammed Yunus 3,. 1 Department of Civil Engineering, KIET, Ghaziabad, Uttar Pradesh, India. 2 Department of Civil Engineering, Umm AlQura University, Makkah, KSA. 3 Department of Mechanical Engineering, Umm AlQura University, Makkah, KSA

INTERNATIONAL JOURNAL OF SCIENTIFIC TECHNOLOGY .

INTERNATIONAL JOURNAL OF SCIENTIFIC TECHNOLOGY .

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S. Nagataki, Properties of Recycled Aggregate and Recycled Aggregate Concrete, International Workshop on Recycled Concrete, 2000. Hansen, ―Elasticity and drying shrinkage of recycled aggregate concrete‖, ACI journal 82 (5), 52, 1985. [3]. C. Hansen and H. Narud, S., ―Strength of recycled concrete made from crushed concrete coarse

"EXPERIMENTAL STUDY ON CONCRETE BLOCKS FROM RECYCLED ...

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The main objective of this study is to experimentally investigate the suitability of recycled aggregate from demolition wastes on the strength aspects of concrete. The specific objectives are as follows; To replace natural coarse aggregate (NCA) by recycled coarse aggregate (RCA) .

Use of recycled concrete as aggregate. Final report ...

Use of recycled concrete as aggregate. Final report ...

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 · article{osti_, title = {Use of recycled concrete as aggregate. Final report}, author = {Buck, A D}, abstractNote = {Supplies of natural mineral aggregates are diminishing as their usage increases. Disposal problems exist because of steadily increasing accumulation of solid wastes. In light of these two situations an investigation was made to evaluate the use of crushed waste concrete ...

An experimental study on the effect of recycled aggregate ...

An experimental study on the effect of recycled aggregate ...

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In this experimental study, the effect of the recycled aggregate on interfacial property, permeability and strength characteristics of the concrete was evaluated in order to examine the relationship between the recycled aggregate and the performance of the hardened concrete. Five types of recycled aggregate and four levels of w/c ratio were tested.

Case studies of recycled concrete aggregate in India

Case studies of recycled concrete aggregate in India

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Case studies of recycled concrete aggregate in India Tuesday 22 June 2021 Aggregate Characteristics Normal production process of crushed aggregates During production of CA, up to 30 percent (rock dependant) of the feed material is reduced to .

IJETT

IJETT

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Jitender Sharma, Sandeep Singla. "Study of Recycled Concrete Aggregates", International Journal of Engineering Trends and Technology (IJETT), V13 (3),123125 July 2014. ISSN:. published by seventh sense research group. This paper describes the introduction and production of recycled concrete aggregates and its ...

Effect of Loading on Permeability of Recycled Aggregate ...

Effect of Loading on Permeability of Recycled Aggregate ...

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In this paper, permeability of concrete after loading at various stress levels, including recycled aggregate concrete (RAC) and natural aggregate concrete (NAC) (at W/B ratio of and ), is measured by means of surface infiltration experiment and chloride penetrating test to study the effect of loading size on permeability of recycled aggregate concrete.

Durability of recycled aggregate concrete – A review ...

Durability of recycled aggregate concrete – A review ...

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In general, the amount of adhered mortar and the quality of the original concrete have a significant effect on the properties of resulting concrete. The increase of RA content and w/c ratio results in poorer durability of concrete. In comparison, the negative effect of recycled fine aggregate is more obvious than that of recycled coarse aggregate.

Towards the classifiion of recycled concrete aggregates ...

Towards the classifiion of recycled concrete aggregates ...

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(2014). Towards the classifiion of recycled concrete aggregates: influence of fundamental aggregate properties on recycled concrete performance. Journal of Sustainable CementBased Materials: Vol. 3, No. 2, pp. 140163.