Influence of recycled concrete aggregate on volumetric

Provide customers with tailor-made solutions

Influence of recycled concrete aggregate on volumetric ...

Mar 01, 2018  Volumetric properties of hot mix asphalt (HMA) are necessary requirements to ensure good performance for asphalt mixtures. This research is conducted to evaluate the influence of coarse recycled concrete aggregate (CRCA) on the volumetric properties of HMA. Mix design of HMA mixture was performed for CRCA at various percentages 0%, 15%, 30% ...

Get Price

Influence of recycled concrete aggregate on volumetric ...

Request PDF Influence of recycled concrete aggregate on volumetric properties of hot mix asphalt Volumetric properties of hot mix asphalt (HMA) are necessary requirements to ensure good ...

Get Price

Effect of Recycled Coarse Aggregate on Concrete

The replacement of recycled aggregate on concrete will decrease the characteristic Strength. In the context of Batch 1, the characteristic Strength for 0% was 29.58 MPa, 35% Recycled Aggregate was 27.27 MPa, 50%. Recycled Aggregate was 25.27 MPa and 65% Recycled Aggregate was 23.08 MPa.

Get Price

Influence of curing conditions on recycled aggregate

May 30, 2018  This paper presents the results of a study of permeability and its influence on the durability of recycled concrete exposed to an aggressive environment. Recycled concretes with 20%, 50% and 100% in weight of recycled aggregate and 24 effective w/c ratios have been exposed directly to a marine environment. Control specimens cured in a humidity ...

Get Price

Influence of recycled concrete aggregates from different ...

Oct 30, 2020  Influence of recycled concrete aggregates from different sources in hot mix asphalt design. ... Influence of recycled concrete aggregate on volumetric properties of hot mix asphalt. Resour. Conserv. Recycl., 130 (2018), pp. 200-214, 10.1016/j.resconrec.2017.11.027.

Get Price

Effect of Recycled Coarse Aggregate on Concrete Properties ...

The replacement of recycled aggregate on concrete will decrease the characteristic Strength. In the context of Batch 1, the characteristic Strength for 0% was 29.58 MPa, 35% Recycled Aggregate was 27.27 MPa, 50%. Recycled Aggregate was 25.27 MPa and 65% Recycled Aggregate was 23.08 MPa.

Get Price

Effect of Aggregate Size on Recycled Aggregate Concrete ...

Coarse aggregate occupies the largest volume of raw materials in concrete [], and is one of the major parameters that can significantly affect the performance of concrete [].Therefore, various characteristics such as shape [], size [], surface condition [5,6], and type [] of coarse aggregate have been investigated worldwide.Several studies have shown that the strength of normal concrete ...

Get Price

Influence of service time of recycled coarse aggregate on ...

Sep 04, 2019  The mechanical properties of recycled aggregate concrete (RAC) may be affected by the service time of parent concrete used to produce the recycled coarse aggregate (RCA), which has not been experimentally investigated. Current models primarily relate RAC elastic modulus to its compressive strength. These models cannot describe the difference in the mechanisms of the

Get Price

Influence of Recycled Coarse Aggregate Replacement ...

Abstract: In this paper 371 cube specimens of recycled aggregate concrete with 0, 30%, 50% and 100% recycled coarse aggregate replacement percentages were fabricated and tested under laboratory conditions. And then the mean values, the standard deviations as well as the coefficients of variation of compressive strength were calculated.

Get Price

Influence of the shape of the natural aggregates, recycled ...

Volume 4: Issue 4 [ISSN 2250-3765] Publication Date : 27 December,2014 Influence of the shape of the natural aggregates, recycled and silica fume on the mechanical properties of pervious concrete Manuel J. Chinchillas-Chinchillas, Ramón Corral-Higuera, José M.

Get Price

Effects of Recycled Aggregate on Concrete Mix and Exposure ...

Jun 25, 2019  The unit weight of the concrete ranged from 2365 to 2175 kg/m 3, depending on aggregate content (Figure 6).Increasing the recycled aggregate content reduces the unit weight and density of the concrete, resulting in lighter concrete (Figure 6).The unit weights of the 15%, 20%, and 25% mixes were reduced by 8%, 11%, and 11.5%, respectively, compared to plain concrete.

Get Price

Influence of Recycled Aggregate on Interfacial Transition ...

Oct 05, 2003  The recycled aggregate concrete is evaluated according to compressive strength, tensile strength, chloride penetration depth, and carbonation depth. The characteristics of ITZs in recycled aggregate concrete are also measured and used to explain the influence of recycled aggregate on the mentioned properties.

Get Price

Influence of Design Parameters on Fresh Properties of Self ...

Dec 16, 2020  Influence of Design Parameters on Fresh Properties of Self-Compacting Concrete with Recycled Aggregate—A Review ... 20%, 30%, and 40% of fine aggregate volume respectively. Series II kept constant coarse aggregate replacement consisting of 50% scoria lightweight aggregates, NFA is then replaced by RFA at 0%, 10%, 20%, 30%, and 40% of fine ...

Get Price

Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  Influence of recycled concrete aggregate on concrete durability. Paper presented at the National Laboratory of Civil Engineering, Portugal. Gupta, Y. P. (2009). Use of recycled aggregate in concrete construction: A need for sustainable environment. Paper presented at the our world in concrete and structures, Singapore. Hansen, T. C. (1986).

Get Price

Research Article Pore Structure and Influence of Recycled ...

Recycled aggregate replacement ratio (%) Total pore Macroporous Capillary pores Volume porosity (%) F : In uence of the recycled aggregate replacement ratio on theporosityofRAC. 100 10 1 0.1 0.01 ...

Get Price

Influence of Heterogeneity, Typology, and Contaminants of ...

J. Sim, and C. Park, "Compressive strength and resistance to chloride ion penetration and carbonation of recycled aggregate concrete with varying amount of fly ash and fine recycled aggregate", Waste Manag., vol. 31, no. 11, pp. 2352-2360, 2011.

Get Price

INFLUENCE OF PARTIAL REPLACEMENT OF CEMENT WITH

3.14 Recycled Coarse Aggregate: The recycled coarse aggregate used in this investigation is obtained by crushing the tested laboratory concrete cubes. Water absorption and specific gravity of recycled coarse aggregate used in this study are 1.75 and 2.56 respectively. present can adversely affect the strength of concrete. T

Get Price

Influence of nano-TiO2 addition on the environmental ...

Nov 30, 2021  Cement is one of the main compounds of concrete, the most consumed construction material globally. Cement manufacturing is responsible for around 8% of the total carbon dioxide (CO2) emissions each year globally. Besides cement, concrete production requires a significant volume of aggregates and water. Over 8 billion m3 of aggregates are used to produce 30 billion tons of

Get Price

(PDF) Influence of Recycled Concrete Aggregates and Slag ...

Influence of Recycled Concrete Aggregates and Slag on the Performance of Pervious Concrete. April 2019; ... Hook-ended steel fibers were added, in 2% volumetric fraction, to improve the properties ...

Get Price

Influence of Impregnation of Recycled Concrete Aggregate ...

Aug 17, 2021  In order to comprehensively assess the influence of various impregnation solutions on the change of the properties of the concrete with impregnated recycling aggregate, all the results obtained are summarized in Table 7 in a simplified form showing the qualitative impact of the various forms of the aggregate treatment.

Get Price

Influence of recycled concrete aggregate on the foam ...

Feb 15, 2021  The effect of recycled concrete aggregates (RCA) in enhancing the foam stability and hardened properties of aerated geopolymer concrete (GFC) produced by a mechanical foaming method is investigated. The RCA was used as a partial or full replacement to fine aggregates, and approximately the same amounts of foam were used in all mixes to achieve ...

Get Price

Influence of High Volume Fly Ash and Recycled Aggregates ...

This paper deals with the evaluation of the influence of recycled concrete aggregate (RCA) and the employment of high volume of fly ash (FA) on the physical, mechanical and durability (chloride ion penetration and carbonation) properties of concretes. The obtained values of which, being compared to those of conventional concretes. Concrete was produced using 0%, 25% and 50% FA in replacement ...

Get Price

Effect of Aggregate Size on Recycled Aggregate Concrete ...

Coarse aggregate occupies the largest volume of raw materials in concrete [], and is one of the major parameters that can significantly affect the performance of concrete [].Therefore, various characteristics such as shape [], size [], surface condition [5,6], and type [] of coarse aggregate have been investigated worldwide.Several studies have shown that the strength of normal concrete ...

Get Price

(PDF) The Effects of Recycled Aggregates on Compressive ...

Jan 01, 2017  The optimal mixture of recycled aggregate concrete is obtained as water cement ratio of 0.5, volume ratio of recycled coarse aggregate of 42.0%,

Get Price

Effect of recycled coarse aggregate on damage of recycled ...

Apr 03, 2011  When volumetric strain curves obtained in strain control rate are analyzed (Fig. 6), in general, the volumetric strains of concrete with recycled aggregate were found to be greater than those of conventional concrete from low stress steps (0.1 f c) to a stress step value of about 0.8 f c. From this stress value the conventional concrete (and ...

Get Price

Influence of service time of recycled coarse aggregate on ...

Sep 04, 2019  The mechanical properties of recycled aggregate concrete (RAC) may be affected by the service time of parent concrete used to produce the recycled coarse aggregate (RCA), which has not been experimentally investigated. Current models primarily relate RAC elastic modulus to its compressive strength. These models cannot describe the difference in the mechanisms of the

Get Price

Influence of Recycled Coarse Aggregate Replacement ...

Abstract: In this paper 371 cube specimens of recycled aggregate concrete with 0, 30%, 50% and 100% recycled coarse aggregate replacement percentages were fabricated and tested under laboratory conditions. And then the mean values, the standard deviations as well as the coefficients of variation of compressive strength were calculated.

Get Price

Effect of the Composition of Mixed Recycled Aggregates on ...

Regarding the fact that Rc1 presented greater mean values than Rc2, this is due to mortar having lower density values than concrete; the dry density values of reference mixtures (with virgin aggregates) based on two reviews on mortar (Silva et al. ) and concrete (Verian et al. ), on recycled aggregate influence, were approximately 1900 kg/m 3 ...

Get Price

Influence of very fine fraction of mixed recycled ...

Influence of very fine fraction of mixed recycled aggregates on the mechanical properties and ... (from a volumetric ratio cement: aggregate of 1:4–1:5 and 1:6) were acceptable. ... has negative ...

Get Price

Influence of the shape of the natural aggregates, recycled ...

Volume 4: Issue 4 [ISSN 2250-3765] Publication Date : 27 December,2014 Influence of the shape of the natural aggregates, recycled and silica fume on the mechanical properties of pervious concrete Manuel J. Chinchillas-Chinchillas, Ramón Corral-Higuera, José M.

Get Price

Influence of Recycled Aggregate on Interfacial Transition ...

Oct 05, 2003  The recycled aggregate concrete is evaluated according to compressive strength, tensile strength, chloride penetration depth, and carbonation depth. The characteristics of ITZs in recycled aggregate concrete are also measured and used to explain the influence of recycled aggregate on the mentioned properties.

Get Price

Microstructural analysis of recycled concrete using X-ray ...

Mar 01, 2016  The recycled coarse aggregates (RCA) used in this experimental program were obtained by casting normal-strength concrete (40 MPa, labeled here T40) and high-strength concrete (80 MPa, labeled here T80).The materials used in these mixtures were ASTM portland cement Type I/II with a specific gravity of 3.15, quartz sand with a fineness modulus of 2.9 as natural fine aggregate (NFA),

Get Price