Increased Durability of Concrete Made with Fine Recycled

Increased Durability of Concrete Made with Fine Recycled


Investigation of Strength and Durability of Steam Curing

Investigation of Strength and Durability of Steam Curing Concrete with L-grade Recycled Coarse Aggregates recycled concrete of which most has been used in the road-bed materials is highly limited. As yet, some popular concrete was checked to ensure that concrete made with BB cement reached a sufficient strength to allow early

Learn More

PERMEABILITY PROPERTIES OF FINE RECYCLED

concrete production. It is possible to use FRA in concrete production and still produce a material with durability properties that comply with the minimum requisites for structural applications. Keywords: concrete, fine recycled aggregates, permeability, chloride penetration, carbonation, electri-cal resistivity

Learn More

Structural Behaviour of Composite Members with Recycled

comparable to those of the companion members made of normal concrete (NC). On behalf of the RILEM Technical Committee 37-DRC, Hansen (1986) prepared a state-of-the-art review on recycled concrete as an aggregate for concrete, covering the period from 1945 to 1977. A second state-of-the-art report on recycled

Learn More

Report of Recycled Concrete Aggregates

Strength and Durability Characteristics of Recycled Concrete Aggregates Dept. of Civil Engineering, Viswajyothi College of Engineering and Technology, Vazhakulam 13 7.1 Experimental Work Three types of aggregates were used in this experiment. They are natural coarse aggregate, natural fine aggregate and recycled concrete

Learn More

A STATE OF THE ART REVIEW ON RECYCLED AGGREGATE

of flexural of the RA concrete. A recycled coarse aggregate was a weakest phase (at a low (w/c) ratio). This effect will take control the strength of RA concrete. This mechanism doesn'toccur during a recycled mortar. The amount of recycled fine aggregate will rule the mortar strength [11].

Learn More

Microstructural Characterization of Concrete Prepared with Recycled

Microstructure of Concrete with Aggregates from Construction and Demolition Waste Recycling Plants. Microscopy and Microanalysis, Vol. 22, Issue. Increased Durability of Concrete Made with Fine Recycled Concrete Aggregates Using Superplasticizers.

Learn More

2. IJCE Mechanical And Durability Properties Of Concrete Made With

and involves processes either to recycle or reuse. Recycling of plastic waste to produce construction material like concrete. appears as one of the best solutions for the disposal of volume of river sand. Mechanical and durability properties were studied with PWAC (Plastic waste aggregate concrete).

Learn More

15 Factors Affecting Durability of Concrete - The Constructor

Quantity of cement used in concrete mix will also be a factor affecting durability of concrete. If cement content used is lower than the required, then water cement ratio becomes reduced and workability also reduced. Adding more water to this mix results in formation capillary voids which will make concrete as permeable material.

Learn More

Experimental Investigation of Concrete Blocks Manufactured

recycled coarse aggregates and up to twenty per cent of natural fine aggregates and m-sand can be replaced by recycled fine aggregate obtained from building demolished waste without compromising much on the strength and durability criteria. Keywords— Concrete blocks; recycled Aggregates; durability; shrinkage. I. INTRODUCTION

Learn More

PAPER OPEN ACCESS Related content A study on the

fine recycled aggregates are characterized by a higher porosity than coarse ones. This can be explained mainly by the higher amount of old cement mortar in fine recycled aggregates [2,3]. Water absorption coefficient of RCA whatever the used method although a slight increase is observed for recycled sand between 24 and 48 h.

Learn More

Experimental Investigation on the Properties of Recycled

The concrete made by replacing cement and adding different fiber dosage reveled positive result showing increase in the mechanical properties of concrete when compared with the control one. Marked strength has been achieved in the concrete made by replacing cement with 10% of fly ash and by adding 1% of hybrid fibers.

Learn More

Durability of recycled aggregate concrete with

Creep of recycled aggregate concrete is found to be 30 to 60% greater and drying shrinkage 20 to 50% greater than concrete made with natural aggregates [7 & 1]. Recycled aggregates are composed of the original aggregates and the adhered mortar.

Learn More

Using Recycled Concrete in MDOT's Transportation

Data collected from indicates that concrete pavements are recycled for transportation infrastructure applications in at least 41 states; moreover, about 140 million tons of crushed concrete aggregate (CCA) are produced in the U.S. per year (ACPA ).

Learn More

The Effect of Aggregate Properties on Concrete

The Effect of Aggregate Properties on Concrete Concrete is a mixture of cementious material, aggregate, and water. Aggregate is commonly considered inert filler, which accounts for 60 to 80 percent of the volume and 70 to 85 percent of the weight of concrete.

Learn More

Evaluating the durability of recycled concrete made of

The main objective of this paper is to evaluate the durability of RAC’s made of recycled concrete coarse aggregate (RCCA) containing silica-fume (SF) and natural zeolite (NZ). Four series of mixtures were made using four levels of RCCA as 0%, 25%, 50%, and 100% with

Learn More

The prognosis of durability of concrete pavements made of

The prognosis of durability of concrete pavements made of the As expected, the concrete with fine and coarse recycled aggregate has worse parameters than the other two types. 4 2.2. Production of a new concrete pavement it decreased by 7,1% for the original concrete while it increased by 31,7% for the recycled one. The difference in the

Learn More

ISSN 2348 – 7968 Compressive Strength of Fine Recycled

of FRA in contrast to CRA increased the concrete’s compressive strength. Khatib [7] observed a general loss of compressive strength with incorporation of fine recycled aggregates made from crushed concrete up to about 28 days, however the relative strength increased after this period; this was attributed to additional cementing action

Learn More

Crushed Concrete Aggregates - Properties and Uses of

Modulus of elasticity of concrete made with recycled coarse and fine aggregate is lower than that of concrete made with recycled coarse aggregate only. 5. Creep Creep of concrete produced from recycled concrete aggregate is higher than concrete made using natural aggregate by 30 to 60%. 6. Drying Shrinkage

Learn More

SciELO - Brasil - A new method to determine the density

19. Fumoto T and Yamada M. Influence of the quality of recycled fine aggregate on properties of concrete. Memoirs of the Faculty of Engineering, Osaka City University. 2002; 43:97-103. 20. Evangelista L and De Brito J. Durability performance of concrete made with fine recycled concrete aggregates. Cement and Concrete Composites. ; 32(1):9-14.

Learn More

Durability studies on recycled fine aggregate concrete

Jul 30,  · Recycled fine aggregates (RFA) are sustainable materials for constructions. • RFA content and porosity are major factors that influences the durability of concrete. • Optimum percentage replacement of river sand by RFA was found 30%. • Durability of concrete increased with the age of the concrete

Learn More

Durability properties evaluation of self-compacting

In this study, the effect of fine and coarse recycled concrete aggregates (RCA) was evaluated by replacing 25%, 50%, 75% and 100% in self-compacting concretes (SCC) on mechanical properties such as compressive and tensile strength, ultrasonic pulse velocity in hardened concrete and durability properties including water absorption, volume of

Learn More

Inquiry