influence of curing conditions on recycled aggregate concrete

The Effect of Curing Conditions on Selected Properties of Recycled

Jun. 27, A significant disadvantage of the recycled concrete aggregate-influenced durability of recycled aggregate concrete (RAC) is the moisture content 

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How Does Concrete Curing Work and How to Make it Sustainable

The process usually involves maintaining the right temperature and moisture conditions over an extended period. Well-cured concrete has just the right amount of 

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Influence of the moisture content on the dynamic modulus

Three coarse aggregates were used, a basalt coarse aggregate (REF) and two recycled coarse aggregates made from the reuse of concrete rejected in a precast plant (RCO - from the crushing of ordinary concretes with fc = 40.0 MPa, and RCT - from the crushing of concretes that had thermal cure, with fc = 45.7 MPa).

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Influence of curing conditions on the durability-related performance

PDF | The effect of curing conditions on the durability of concrete mixes containing concrete containing fine aggregate manufactured from recycled waste 

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PDF Some mechanical properties of normal and recycled

strength after 28 days with standard curing conditions. Butler et al. [4] focused on characterizing two recycled concrete aggregate sources in Ontario and produced a novel concrete containing recycled concrete aggregate as the coarse aggregate. They found that \the recycled aggregates had lower densities and higher

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Jorge de Brito‬ - ‪Google Scholar

2005. Recycled aggregate in concrete: use of industrial, construction and demolition waste. J De Brito, N Saikia. Springer Science & Business Media. , 2012. 308. 2012. Mechanical properties of concrete produced with recycled coarse aggregates-Influence of the use of superplasticizers.

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Luis Evangelista‬ - ‪Google Scholar

The influence of curing conditions on the mechanical performance of concrete made with recycled concrete waste N Fonseca, J De Brito, L Evangelista Cement and Concrete Composites 33 (6), 637-643 ,

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Effects of Magnetic Water in Concrete • Aggregate Research

Step 2: Mixing the suspension and the aggregates either in an available mixer/homogenizer or in a concrete mixer truck. The water (fresh or recycled water), which is needed for the manufacturing process, is physically (electrically and electro-dynamically) treated in the first step (FML water treatment system "WTS").

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A proposal for the maximum use of recycled concrete sand

Cuenca-Moyano et al. studied the influence of pre-soaked recycled fine aggregates from CDW on the properties of masonry concrete and concluded that this method may be more effective to compensate for the higher water absorption of recycled aggregates.

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Shrinkage of Concrete with Replacement of Aggregate with

Key words: Basic shrinkage, recycled concrete, recycled concrete aggregate, shrinkage and shrinkage by drying. *José Manuel Gómez-Soberón is Ph.D for the School of Civil Engineering of the Technical University of Catalonia, Spain. He has published numerous papers on the area of Recycled Concrete in

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Use of recycled concrete aggregate in concrete: a review

Dec 01,  · The outer environmental curing conditions produce the more adverse effects on RCA concrete than on NCA concrete. Fonseca et al. ( ) reported that the difference in the splitting tensile strength between NCA and RCA concretes is high when they are cured in the outer environment. A. S. 2009. Influence of recycled concrete aggregates on

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Factors Affecting Strength of Concrete - The Constructor

Factors Affecting Strength of Concrete. Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine aggregate ratio, age of concrete, compaction of concrete, temperature, relative humidity and curing of concrete.

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Structural behaviour of prestressed concrete sleepers

49 influence of RCA on the physical, mechanical and durability properties of Recycled Aggregate Concrete 50 (RCA) [4–15]. Comparative studies of the RCA with natural aggregates conclude that the lower 51 properties of the haveRCA in general negative effects on the properties of the Recycled Aggregate 52 Concrete (RAC).

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Use of Recycled Concrete Aggregate in High Strength Concrete

Effect of recycled aggregate in concrete can be useful for environmental 100 mixes exhibits the lowest wear of all mixes for the same curing conditions.

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Influence of Treatment Methods on the Strength and

The physical and mechanical properties of these aggregates, and their strength and performance of recycled aggregate concrete are determined. The results show that treatment with H 2 SO 4 , and heating and scrub yield, aggregate with reduced water absorption and other desired properties of natural aggregate.

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Recycled Aggregate Concrete including Various Contents of

Dec 17,  · Natural coarse aggregate and recycled coarse aggregate were used in this study. The former was river aggregate (gravel). The maximum aggregate size is 20 mm. It had absorption capacity of 1.1% and specific density of 2.64. The coarse recycled aggregate was recycled concrete-based aggregate derived from crushing old concrete structural elements.

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PDF Effects of Aggregate Type, Size, and Content on Concrete

to make high-strength concrete, it is easier to do so with coarse aggregates below 12.5 mm (Y, in.) (ACI 363-95). There has not been much research on the effects of coarse aggregate content

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Influence of cement and aggregate type on steam-cured concrete

May 30, Ordinary Portland cement (OPC) and high early strength cement (HESC) were used as binders, and recycled and natural aggregates were used as 

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Recycled Concrete Aggregate: Influence of Aggregate Pre

Recycled concrete aggregate (RCA) is a construction material, which is being used in the Canadian construction industry more frequently than it was in the past. The environmental benefits associated with RCA use, such as reduced landfilling and natural aggregate (NA) quarrying, have been identified by industry and government agencies.

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Effect of the Aggregate Size on Strength Properties of

The study on preparation technology of recycled concrete with economical and technical feasibility has gained more serious attention in each country due to its involvement and effect on the environment protection and the sustainable development of human society. In this study, we conducted a control variable test to investigate and assess the influence of the aggregate size on the strength

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15 Factors Affecting Durability of Concrete - The Constructor

Reading time: 1 minute A durable concrete is one that performs satisfactorily under expected exposure conditions for specified life of the structure. Various factors affecting the concrete durability are discussed below. Contents:Factors Affecting Durability of Concrete1. Cement Content2. Aggregate Quality3. Water Quality4. Concrete Compaction5. Curing Period6. Permeability7. Moisture8

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Strength and Durability Properties of Treated Recycled

The use of recycled aggregate (RA) generated from construction and demolition (C&D) waste to produce new concrete would minimize the need for the use of natural aggregate (NA). The authors propose a new hybrid method in the present work by combining presoaking in mild acetic acid followed by mechanical grinding to produce high-quality RA.

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Successive recycled coarse aggregate effect on mechanical

To avoid serious environmental impacts and hazards recycled concrete "The influence of curing conditions on the mechanical performance of concrete made 

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Indian Concrete Journal

The carbon footprint of recycled aggregate concrete is slightly higher than the control concrete. However, the addition of SCMs reduced the carbon footprint significantly. Heat Curing as a Means of Post-processing Influence on 3D Printed Mortar Specimens in Powder-based 3D Printing Pshtiwan Shakor, Shami Nejadi, Gavin Paul, Jay Sanjayan, Farhad

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Influence of Recycled Aggregate on Concrete Properties

This video (Animation, Animated Video) explains the basic concept of recycled concrete aggregate, what are the uses of recycled concrete 

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Concrete Compressive Strength - SlideShare

7 Aggregate : we have already looked at the influence of aggregates on concrete strength in point 4 of factors Water : Frequently the quality of the water is covered by a clause stating "the water should be fit for drinking" "this criterion through is not absolute and refrence should be made to BS 3148 : Tests for water for making Concrete" 2.

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Influence of curing conditions on the mechanical

To study the influence of curing conditions on the mechanical performance of concrete containing waste plastic aggregate several mixes were produced with replacement ratios of 0%, 7.5% and 15% of

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THE INFLUENCE OF RIVER AND VOLCANIC SAND AS COATINGS

May 22,  · One of the most important factors used to determine the compressive strength of concrete is its aggregate and matrix adhesion. This study examines the surface properties of polypropylene (PP) waste coarse aggregate (PWCA) to determine the influence of sand. The PWCA was made from the PP waste and different types of coating such as PWCA-R (river sand) and PWCA-V

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Properties and Internal Curing of Concrete Containing

Aug 20,  · After 24 hours, all concrete samples were demoulded and kept in specific designed-curing conditions, water and air curing. P. C. Ryan, H. Z. Cui, and W. Liao, “Properties of self-compacting concrete with recycled coarse aggregate,” Advances in “Influence of curing condition on the properties of mae moh fly ash mortar at

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Utilization of CO2 curing to enhance the properties of

Abstract In recent years, the CO2 curing technique has been developed to enhance the properties of recycled aggregate (RA) and recycled aggregate concrete (RAC), materials that can absorb the CO2 gas and are more sustainable for the construction industry. A body of literature on the CO2 curing of RA and RAC is currently available, but a systematic review is lacking.

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INFLUENCE OF ACID TREATMENT AND IVA DESPOTOVI

Recycled concrete aggregate (RCA), obtained by crushing of original concrete, consists of natural aggregate grains and cement mortar matrix. So far, RCA has been used for the production of new con-crete and soil stabilization, as well as for materials for road pavement construction, primarily for unbound base and sub-base layers [3,4].

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