mechanical properties of recycled aggregates concrete

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Mechanical properties of recycled aggregate concrete ...

Apr 30, 2020  This paper investigated the mechanical properties of recycled aggregate concrete (RAC; with recycled clay brick aggregates (RCBA) as the coarse aggregates) modified by nano-particles, i.e. nano-SiO 2 (NS), nano-CaCO 3 (NC) and multi-wall carbon nanotubes (MWCNTs). Two experimental phases were carried out.

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MECHANICAL PROPERTIES OF RECYCLED AGGREGATE

properties of concrete made with laboratory crushed old concrete aggregate are limited [5, 6], only few data are available on grade recycled aggregate, including durability aspects, concrete mixture proportions and fresh concrete performance. Thus, this paper evaluates the effects on the mechanical properties of hardened concrete containing

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(PDF) Mechanical properties of recycled aggregate concrete

Their influence on concrete mechanical properties is investigated. As a result, it has been obtained that using recycled aggregate to replace part of the normal coarse aggregate effects the elastic...

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Mechanical properties of recycled aggregate concrete under ...

Jun 01, 2005  The most important mechanical properties of RAC are the compressive strength, the tensile and the flexural strengths, the bond strength and the elastic modulus of such concrete. In particular, the stress–strain relation of RAC is especially important in theoretical and numerical analysis as well as engineering design of RAC structures.

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MECHANICAL PROPERTIES OF RECYCLED AGGREGATE

properties of concrete made with laboratory crushed old concrete aggregate are limited [5, 6], only few data are available on grade recycled aggregate, including durability aspects, concrete mixture proportions and fresh concrete performance. Thus, this paper evaluates the effects on the mechanical properties of hardened concrete containing

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(PDF) Mechanical properties of recycled aggregate concrete

Mechanical properties of demolishing waste [4], compressive strength [5], effect of fly ash [18], effect of cement proportion [21], effect of recycled aggregates on mix design [22], and durability ...

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Mechanical properties of concrete with recycled aggregates ...

May 18, 2016  The present investigation analyses the mechanical behaviour of concrete with recycled aggregates from precast debris and waste glass. The combination of both recycled materials permits an increased amount of recycled coarse aggregates reducing the loss of mechanical performance of the concrete, and enhances the environmental value of the final material.

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Mechanical Properties of Recycled Aggregate Concrete at ...

This paper presents an experimental research on mechanical properties of recycled aggregate concrete (RAC) at low and high water/binder (W/B) ratios. Concrete at two W/B ratios (0.255 and 0.586) was broken into recycled concrete aggregates (RCA). A type of thermal treatment was employed to remove mortar attached to RCA. The RAC at a certain (low or high) W/B ratio was prepared with RCA

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Mechanical Properties Of Recycled Aggregates Concrete ...

The application of recycled aggregate to use in construction activities have been practice by developed European countries and also of some Asian countries. This paper reports the results of an experimental study on the mechanical properties of recycled aggregate concrete (RAC) as compared to natural aggregate concrete (NAC).

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Mechanical Properties and Durability of Recycled Aggregate ...

Jun 30, 2021  During the design of the mixing ratio of the recycled aggregate permeable concrete, attentions should be paid to the mechanical properties, mixing performance and water consumption of the concrete test pieces, and these physical properties are greatly affected by the two parameters, the moisture content and water absorption of the recycled ...

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Mechanical and Durability Properties of Concrete Produced ...

Recycled aggregates from construction and demolition wastes consist of natural aggregate and attached cement mortar. Due to the old, attached mortar, recycled aggregates have poor physical and mechanical properties. Hence, their use is limited to up to 30% replacement of natural aggre-gate with RCA in structural applications.12,13 To the extent

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Mechanical and thermal properties of lightweight recycled ...

Nov 01, 2020  Saikia and Brito investigated the mechanical properties of concrete incorporating three types of recycled PET as replacement of natural aggregates. They concluded that though the mechanical properties of plastic concrete were inferior compared to the conventional concrete, the stress-strain behavior of the former was similar to that of the latter.

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Mechanical properties of recycled aggregate concrete under ...

May 04, 2020  The mechanical properties of recycled aggregate concrete under multiaxial compression were tested by servo-controlled setup (TAWZ-5000/3000). Properties of strength and stress–strain relation were obtained, and the influence factors of stress ratio and recycled coarse aggregate replacement ratio were analyzed.

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Influence of Impregnation of Recycled Concrete Aggregate ...

The paper focuses on investigating the effect of impregnation of recycled concrete aggregate on the mechanical and durability properties of concrete using this aggregate. Cement paste, limewater and diluted water glass were used to impregnate the aggregate. Both a single impregnation and a double impregnation using two different solutions were carried out. A total of four groups of concrete ...

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INFLUNCE OF WATER CURING TEMPERATURE ON SOME MECHANICAL

To evaluated the influence on the mechanical properties five mixture were designed, SCC without recycled concrete aggregate and four ( SCC with 25% recycled concrete aggregate SCC with 50% recycled concrete aggregate, SCC with 75% recycled concrete aggregate and SCC with 100% recycled concrete aggregate) and exposed to heat of treatment water ...

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  The state of the art regarding the long-term properties of recycled aggregate concrete. Structural Concrete, 15(1), 3–12. Article Google Scholar Xiao, J. Z., Li, J. B., Zhang, C. (2006). On relationships between the mechanical properties of recycled aggregate concrete: An overview. Materials and Structures, 39(6), 655–664.

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Mechanical and Durability Properties of Concrete ...

Jun 27, 2021  10%  This study examines the mechanical and durability properties of five different concrete mixes using the construction and demolition waste as partial replacement of coarse aggregate. In the concrete mixes, a constant water–cement (w/c) ratio of 0.43 was used. In contrast, the natural coarse aggregates were replaced by recycled coarse aggregate using five different

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Utilization of Upgraded Recycled Concrete Aggregates and ...

Zega and Di Maio studied the mechanical and durability properties of the concrete produced using the fine recycled concrete aggregates with 0, 20, and 30% replacement of fine natural aggregates. Their results indicated that the concrete produced with the incorporation of recycled concrete fines showed similar mechanical and durability behavior ...

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(PDF) MECHANICAL PROPERTIES OF RECYCLED AGGREGATE CONCRETE ...

While studies on the mechanical and engineering While the economical and environmental advantages of properties of concrete made with laboratory crushed old using recycled aggregates are obvious, some problems concrete aggregate are limited [5, 6], only few data are related to durability aspects resulted in recycled aggregates available on ...

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MECHANICAL PROPERTIES OF RECYCLED AGGREGATE

of recycling. In addition, the mechanical properties of the concrete that was made by the recycled aggregate were com-pared to the concrete made of natural aggregate. The primary objective of this study was to characterize the concrete-rebar bonding properties of the recycled aggregate concrete. The recycled aggregate concrete showed about 18% de-

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(PDF) MECHANICAL PROPERTIES OF RECYCLED AGGREGATE CONCRETE ...

Dec 27, 2019  The results of tests showed that using of recycled coarse aggregate as alternative to natural coarse aggregate gives good quality concrete and

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Mechanical properties of recycled aggregate concrete under ...

May 04, 2020  The mechanical properties of recycled aggregate concrete under multiaxial compression were tested by servo-controlled setup (TAWZ-5000/3000). Properties of strength and stress–strain relation were obtained, and the influence factors of stress ratio and recycled coarse aggregate replacement ratio were analyzed.

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(PDF) “Mechanical Properties of Concrete with Recycled ...

This paper reports the results of an experimental study on some of the mechanical properties of recycled aggregate concrete. (RAC) as compared to those of the conventional normal aggregate ...

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Rheological and Mechanical Properties of Ultra-High ...

Rheological and Mechanical Properties of Ultra-High-Performance Concrete Containing Fine Recycled Concrete Aggregates Materials (Basel) . 2019 Nov 11;12(22):3717. doi: 10.3390/ma12223717.

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(PDF) Mechanical properties of brick aggregate concrete ...

The use of recycled aggregate in concrete in Hong Kong. Res recycling. Res Conserv Recyl 2006;47(3):209–21. Conserv Recyl 2007;50(3):293–305. [9] Akhtaruzzaman AA, Hasnat A. Properties of concrete using crushed brick as [14] Khaloo AR. Properties of concrete using crushed clinker brick as coarse aggregate.

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  The state of the art regarding the long-term properties of recycled aggregate concrete. Structural Concrete, 15(1), 3–12. Article Google Scholar Xiao, J. Z., Li, J. B., Zhang, C. (2006). On relationships between the mechanical properties of recycled aggregate concrete: An overview. Materials and Structures, 39(6), 655–664.

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Influence of Impregnation of Recycled Concrete Aggregate ...

The paper focuses on investigating the effect of impregnation of recycled concrete aggregate on the mechanical and durability properties of concrete using this aggregate. Cement paste, limewater and diluted water glass were used to impregnate the aggregate. Both a single impregnation and a double impregnation using two different solutions were carried out. A total of four groups of concrete ...

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Mechanical properties of concrete with recycled aggregates ...

The present investigation analyses the mechanical behaviour of concrete with recycled aggregates from precast debris and waste glass. The combination of both recycled materials permits an increased amount of recycled coarse aggregates reducing the loss of mechanical performance of the concrete, and enhances the environmental value of the final material.

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The Biaxial Compressive Mechanical Properties and Strength ...

Oct 26, 2020  Vieira JPB et al (2011) Post-fire residual mechanical properties of concrete made with recycled concrete coarse aggregates. Cem Concr Res 41(5):533–541. Article Google Scholar Wang CZ, Guo ZH, Zhang XQ (1987) Strength test of concrete under biaxial and triaxial compression. J Civil Eng 15(1):27 (in Chinese)

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Mechanical properties, drying shrinkage, and nano-scale ...

1 天前  The outcome of this study exploits the synergy between natural ZP and RCA to effectively solve the problem of poor effect of conventional strengthening methods on old demolition concrete wastes to improve the mechanical and drying shrinkage properties of recycled aggregate concrete while promoting resource conservation and recycling.

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Mechanical and Durability Properties of Concrete ...

Jun 27, 2021  This study examines the mechanical and durability properties of five different concrete mixes using the construction and demolition waste as partial replacement of coarse aggregate. In the concrete mixes, a constant water–cement (w/c) ratio of 0.43 was used. In contrast, the natural coarse aggregates were replaced by recycled coarse aggregate using five different replacement

Get Price

Utilization of Upgraded Recycled Concrete Aggregates and ...

Zega and Di Maio studied the mechanical and durability properties of the concrete produced using the fine recycled concrete aggregates with 0, 20, and 30% replacement of fine natural aggregates. Their results indicated that the concrete produced with the incorporation of recycled concrete fines showed similar mechanical and durability behavior ...

Get Price