Earlyage behavior of recycled aggregate concrete under

Early-age behavior of recycled aggregate concrete under ...

May 20, 2017  Bendimerad et al. (2016) specifically investigated shrinkage induced cracking in concrete due to plastic shrinkage at an early-age and deduced that although the shrinkage increased with the substitution of recycled aggregates, the correlation was not linear and maximum shrinkage strain of 1100 μm/m was found for 30% replacement of NA by RA.

get price

Early age behaviour of recycled concrete aggregates under ...

Sep 01, 2017  Early age behaviour of recycled concrete aggregates under normal and severe drying conditions. ... this study mainly focuses on the impact of the initial water saturation of recycled concrete aggregates under severe conditions. Fresh concrete behaviours such as early shrinkage and cracking were investigated. ... Behavior from fresh to hardened ...

get price

Early-age behavior of recycled aggregate concrete under ...

Request PDF On May 1, 2017, Asad Hanif and others published Early-age behavior of recycled aggregate concrete under steam curing regime Find, read and cite all the research you need on ...

get price

Early age behaviour of recycled concrete aggregates under ...

Request PDF Early age behaviour of recycled concrete aggregates under normal and severe drying conditions The use of recycled aggregates in concrete mixtures is a part of waste recovery strategy.

get price

Fracture behavior of recycled aggregate concrete under ...

Nov 01, 2019  The fracture behavior of pre-cracked three-point bending specimens with different recycled coarse aggregate (RCA) replacement ratios was studied. The deformation characteristics of specimens during the fracture process were analyzed by the digital image correlation (DIC) technique, and then the cracking morphology was observed and discussed.

get price

Early age behaviour of recycled concrete aggregates under ...

Request PDF Early age behaviour of recycled concrete aggregates under normal and severe drying conditions The use of recycled aggregates in concrete mixtures is a part of waste recovery strategy.

get price

Fracture behavior of recycled aggregate concrete under ...

Nov 01, 2019  Fracture process and reliability of concrete made from high grade recycled aggregate using acoustic emission technique under compression Mater. Struct. , 46 ( 2013 ) , pp. 1441 - 1448

get price

Recycled aggregate concrete – Mechanical behavior under ...

Apr 15, 2014  This paper presents the results of an experimental program related with the failure and mechanical behavior of Recycled Aggregate Concrete (RAC) under different load scenarios. The particular type of RAC considered herein is characterized by the partial or total replacement of natural coarse aggregates by recycled ones obtained from the crushing of waste concrete.

get price

Experimental Behaviour of Recycled Aggregate Concrete ...

Jan 03, 2019  Concrete-filled steel tube (CFST) is one of the widely used composite materials in construction. In comparison with reinforced concrete, the advantages of CFST can be (1) lightweight; (2) steel tubes replace the tedious formwork and thus reduce the construction time and cost; (3) steel tubes can carry construction load in early age of concrete; (4) concrete is confined by steel tubes resulting ...

get price

Workability and Early-Age Strength of Recycled Aggregate ...

Abstract - This research investigates the effect of basalt fibers (BF) on the workability and early-age compressive and splitting tensile strengths of concrete made with 100% recycled concrete aggregates (RCA). The target concrete compressive strengths were 30, 45, and 60 MPa, whereas the basalt fibers had a length of either 20 or 43 mm.

get price

Failure Process of Modeled Recycled Aggregate Concrete ...

This paper investigates the failure processes of recycled aggregate concrete by a model test and numerical simulations. A micromechanical numerical modeling approach to simulate the progressive cracking behavior of the modeled recycled aggregate concrete, considering its actual meso-structures, is established based on the discrete element method (DEM).

get price

Seismic behavior of recycled aggregate concrete beams ...

Dec 30, 2016  Abstract. Although the material property and structural behavior of recycled aggregate concrete (RAC) have been widely investigated, the research on seismic performance of RAC members under cyclic torsion is still very limited. In this paper, the failure mode, hysteresis loop, strain of steel reinforcement, principal strain of concrete, energy ...

get price

(PDF) EXPERIMENTAL STUDY ON E-WASTE CONCRETE AND

The exural behavior of the ... was seen in the recycled aggregates crushed at an early age. ... to evaluate the effects of recycled concrete aggregate (RCA) percentages under different curing ...

get price

Advanced techniques for the study of shrinkage-induced ...

cled aggregate on the early age cracking sensitivity of recycled con-crete [14,15,35,36]. The study presented in this paper focuses on plastic shrinkage induced cracking of concrete with recycled sand and gravels at early age. The experimental part is based on active restrained shrinkage tests performed with the temperature-stress testing

get price

273-RAC : Structural behaviour and innovation of recycled ...

238-SCM (2011) De Belie, Lothenbach, Hydration and microstructure of concrete with supplementary cementitious materials. CCF (2014) Serna, Cavalaro, Creep behavior in cracked sections of fiber reinforced concrete. 246-TDC (2011) Yao, Wang, Test methods to determine durability of concrete under combined environmental actions and mechanical load.

get price

Structural Behavior of Concrete Beams Containing Recycled ...

Jul 04, 2020  The structural behavior of concrete beams containing recycled coarse aggregates (RCAs) was investigated in this study using detailed experimental data. Twelve concrete beams were tested in the experimental program: nine beams with varying RCA contents and three control beams with natural coarse aggregates (NCAs). The parameters for investigating the structural behavior of the RCA concrete ...

get price

Passive Wireless Sensors for Monitoring Behavior of ...

The early age monitoring of recycled aggregate concrete will be conducted with the RFID system. This project is a precursor to a field test at O’Hare Int’l Airport to demonstrate the survivability of RFID systems for real-world operation in aggressive weather conditions.

get price

Recycled Concrete Aggregates Research Department of ...

The University of Texas at Tyler, Notre Dame, and New Mexico State University investigate the viability of using recycled concrete aggregates (RCA) for improved sustainability of reinforced concrete building structures. This research is funded under a grant from the National Science Foundation.

get price

Mechanical behavior of concrete using seawater and sea ...

Jul 05, 2019  The addition of seawater and sea‐sand improves the mechanical behavior of recycled aggregate concrete, but deteriorates the early‐age cracking behavior. Furthermore, the stress–strain relationship of SSNAC is analyzed, and applicability of the existing model is evaluated.

get price

Workability and Early-Age Strength of Recycled Aggregate ...

Abstract - This research investigates the effect of basalt fibers (BF) on the workability and early-age compressive and splitting tensile strengths of concrete made with 100% recycled concrete aggregates (RCA). The target concrete compressive strengths were 30, 45, and 60 MPa, whereas the basalt fibers had a length of either 20 or 43 mm.

get price

Mechanical Behavior of Recycled Aggregate Concrete-Filled ...

Mar 09, 2017  1. Introduction. Recycled aggregate concrete (RAC) is a type of concrete material that is made from recycled concrete aggregate (RCA) obtained from waste concrete by cleaning, crushing, and grading [1,2].The emergence of RAC not only greatly reduces the demand for natural aggregate, but also reduces the environmental pollution caused by construction waste [].

get price

(PDF) EXPERIMENTAL STUDY ON E-WASTE CONCRETE AND

The exural behavior of the ... was seen in the recycled aggregates crushed at an early age. ... to evaluate the effects of recycled concrete aggregate (RCA) percentages under different curing ...

get price

Dynamic compressive behavior of recycled aggregate concrete

Jan 25, 2016  The dynamic compressive behavior of recycled aggregate concrete (RAC) prepared with five recycled coarse aggregate (RCA) replacement percentages was experimentally studied at strain rates ranging from 10−5 to 10−1 s−1. The effect of strain rate, RCA replacement percentage and moisture condition on the compressive behavior of RAC was studied in terms of stress–strain curve,

get price

Flexural behavior of reinforced recycled aggregate ...

Oct 09, 2012  The load—deflection behavior of reinforced concrete beams is not significantly affected by the concrete type, i.e., the quantity of coarse recycled aggregate in concrete. The differences in P–δ diagrams between the NAC, RAC50, and RAC100 beams of the same reinforcement ratio can be considered as negligible.

get price

Zhihui Sun - J.B. Speed School of Engineering - University ...

Durability of recycled aggregate concrete under coupling mechanical loading and freeze-thaw cycle in salt-solution. ... Mitigation of Early-Age Cracking of Concrete Based on a New Gel-Type Superabsorbent Polymer. ... Seismic behavior of recycled aggregate concrete filled steel and glass fiber reinforced plastic tube columns.

get price

273-RAC : Structural behaviour and innovation of recycled ...

238-SCM (2011) De Belie, Lothenbach, Hydration and microstructure of concrete with supplementary cementitious materials. CCF (2014) Serna, Cavalaro, Creep behavior in cracked sections of fiber reinforced concrete. 246-TDC (2011) Yao, Wang, Test methods to determine durability of concrete under combined environmental actions and mechanical load.

get price

건설융합학부 토목공학전공

Early-age behavior of recycled aggregate concrete under steam curing regime, 2017. 5. 1. Characteristics of modified soil-aggregate system and their application in pavements 2014.05. 2. Characterization of mode-I and mode-II fracture properties of fine aggregate matrix using a semicircular specimen geometry 2014.01. 3.

get price

Concrete Shrinkage and Creep in Recycled Aggregate ...

Nov 07, 2016  The measurements on the shrinkage and creep lasted for about eighteen months. The main parameters varied in the tests are: (1) sectional types, circular and square; (2) in-fill concrete types, recycled aggregate concrete (RAC) and normal concrete; and

get price

Mechanical behavior of concrete using seawater and sea ...

Jul 05, 2019  The addition of seawater and sea‐sand improves the mechanical behavior of recycled aggregate concrete, but deteriorates the early‐age cracking behavior. Furthermore, the stress–strain relationship of SSNAC is analyzed, and applicability of the existing model is evaluated.

get price

Stress-Strain Behavior of FRP-Confined Recycled Aggregate ...

Jun 03, 2015  A large amount of research has been conducted on recycled aggregate concrete (RAC) due to its social, environmental, and economic significance. However, the in situ application of RAC has so far been mainly limited to nonstructural purposes, as the performance of RAC, in both the short and long term, is inferior to its normal concrete counterpart.

get price

Investigation on Seismic Behavior of Recycled Aggregate ...

Based on the ever finished investigations of physical and mechanical properties of recycled aggregate concrete (RAC), and a series of experimental studies on the durability, the fatigue behavior, mechanical behavior and the seismic behavior of RAC components. A full scale model of a one-storey block masonry structure with tie column + ring beam + cast-in-place slab system and a one fourth ...

get price

Effect of Using Recycled Coarse Aggregate to the Bond ...

“Properties of Recycled Concrete Aggregate under Different Curing Conditions.” ... “Early-Age Behavior of Recycled Aggregate Concrete under Steam Curing Regime.” ... Jianzhuang Xiao, and Dongxing Xuan. “Effect of Carbonated Recycled Coarse Aggregate on the Dynamic Compressive Behavior of Recycled Aggregate Concrete.” ...

get price

Optimization of Steam-Curing Regime for Recycled Aggregate ...

De Schutter, G. Fundamental study of early age concrete behaviour as a basis for durable concrete structures. Mater. Struct. 2002, 35, 15–21. [Google Scholar] Nixon, P.J. Recycled concrete as an aggregate for concrete—A review. Matér. Constr. 1978, 11, 371–378. [Google Scholar]

get price