scholarly journals An Experimental Study on Flexural Behaviors of Reinforced Concrete Member Replaced Heavyweight Waste Glass as Fine Aggregate under Cyclic Loading

2018 ◽  
Vol 8 (11) ◽  
pp. 2208 ◽  
Author(s):  
So Yeong Choi ◽  
Yoon Suk Choi ◽  
Il Sun Kim ◽  
Eun Ik Yang
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Flexural Rigidity ◽  
Load Capacity ◽  
Waste Glass ◽  
Mineral Admixture ◽  
Flexural Behavior ◽  
Fine Aggregate ◽  
Concrete Members ◽  
Substitution Ratio

The development of electronic technology has accelerated in recent decades. Consequently, electronic wastes such as cathoderay tube (CRT) glass are accumulated, and hazardous wastes including heavy metals are generated. Simultaneously, natural resources are required to create concrete; however, they are already exhausted. Furthermore, heavyweight waste glass is considered to be the most suitable substitute for aggregate owing to its physical characteristics and chemical composition. However, structural results regarding the recycling of heavyweight waste glass as fine aggregate in Reinforced Concrete (RC) members are insufficient. Thus, herein, experimental study is conducted to evaluate whether RC members with heavyweight waste glass as fine aggregate can be applied for concrete structures. Flexural behavior tests of reinforced concrete members were performed. Fifteen specimens with different substitution ratios of heavyweight waste glass were prepared. The results showed that when all the fine aggregate is replaced by heavyweight waste glass in RC members, the heavyweight waste glass substitution ratio affected the crack occurrence patterns, and the possibility of a sudden failure of a member increased owing to concrete crushing in the compression zone. Additionally, the load capacity and flexural rigidity were affected by the substitution ratio of heavyweight waste glass; however, the flexural performance is improved when mineral admixture as a binder or a low water-binder ratio were used. Therefore, heavyweight waste glass is considered applicable for use as fine aggregate of concrete.

Characteristics of Flexural Behavior of Reinforced Concrete Member Substituted Heavyweight Waste Glass as Fine Aggregate

2018 ◽  
Vol 940 ◽  
pp. 141-145
Author(s):  
So Yeong Choi ◽  
San Kim ◽  
Eun Ik Yang
Keyword(s):  
Reinforced Concrete ◽  
Flexural Rigidity ◽  
Waste Glass ◽  
Flexural Behavior ◽  
Fine Aggregate ◽  
Huge Amount ◽  
Concrete Members ◽  
Reinforced Concrete Member ◽  
Substitution Ratio ◽  
Concrete Materials

The progress of civilization has been led to the increase of industrial products, the amount of waste is increasing, and its disposal has become a problem. And, the huge amount of expended concrete has led to the dissipation of natural aggregate. To deal with these problems, many researches have been executed to use a variety of industrial waste as aggregate in concrete materials. So, in this paper, the flexural behavior with substitution ratio of heavyweight waste glass were compared and evaluated in reinforced concrete members. From the results, initial cracking load, yielding load and flexural rigidity less affected by substitution ratio of heavyweight waste glass. However, the ductility of the RC member was significantly affected when all of the fine aggregate is replaced by the heavyweight waste glass.

scholarly journals Experimental study on flexural behavior of GFRP reinforced concrete slabs

2021 ◽  
Vol 676 (1) ◽  
pp. 012060
Author(s):  
Sun Li-xiang ◽  
Lin Peng-zhen ◽  
Yang Zi-jiang ◽  
Liu Ying-long ◽  
Shen Qu
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Flexural Behavior ◽  
Concrete Slabs ◽  
Reinforced Concrete Slabs

An experimental study of crack development in flexural reinforced concrete members

2017 ◽  
Author(s):  
Annette Beedholm Rasmussen ◽  
Bjarke Würtz Sørensen ◽  
Mikkel Skov ◽  
Peter Kolt Rasmussen ◽  
Lars Germa Hagsten
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Crack Development ◽  
Concrete Members

Prediction Model of Deflections in PET Fiber Reinforced Concrete Beams

2014 ◽  
Vol 1611 ◽  
pp. 1-6
Author(s):  
F. J. Baldenebro-Lopez ◽  
J. H. Castorena-Gonzalez ◽  
J. A. Baldenebro-Lopez ◽  
J.I. Velazquez-Dimas ◽  
J. E. Ledezma-Sillas ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Design Theory ◽  
Load Capacity ◽  
Tensile Load ◽  
Fiber Reinforced Concrete ◽  
Reinforced Concrete Beams ◽  
Flexural Behavior ◽  
Engineering Properties ◽  
Uniaxial Tensile ◽  
Strain Diagram

ABSTRACTThe increasing use of polymeric reinforcements in concrete structures requires either the development of a new design theory or the adaptation of current designs considering the engineering properties of this type of materials. In this work a method for calculating the deflections of reinforced concrete elements is proposed, which can be used in predicting the flexural behavior of longitudinally reinforced concrete with PET strips in amounts up to 1%. The model theory assumes that concrete has a tensile load capacity different to zero, characterized by a uniaxial tensile stress-strain diagram. A series of tests were conducted to corroborate the validity of the suggested method, showing that the theory also correctly predicts the creep deformation post-cracking. The deflection results of reinforced concrete with recycled PET strips are presented. The tests are carried out by a simple beam with center-point loading, using three different amounts of reinforcement and comparing the experimental results with the theoretical results of the proposed model.

Flexural Behaviour of Reinforced Geopolymer Concrete Incorporated with Hazardous Heavy Metal Waste Ash and Glass Powder

2022 ◽  
Vol 1048 ◽  
pp. 345-358
Author(s):  
A. Kumar Suresh ◽  
M. Muthukannan ◽  
A.D.K.B. Irene ◽  
K. Kumar Arun ◽  
A. Chithambar Ganesh
Keyword(s):  
Glass Powder ◽  
Ductile Failure ◽  
Waste Glass ◽  
Flexural Behavior ◽  
Fine Aggregate ◽  
Geopolymer Concrete ◽  
Weight Percentage ◽  
Toughness Index ◽  
Waste Glass Powder ◽  
The Impact

The flexural behavior of Incinerated Bio-Medical Waste Ash (IBWA) – Ground Granulated Blast Furnace Slag (GGBS) based Reinforced Geopolymer Concrete (RGPC) beams with Waste Glass Powder (WGP) as fine aggregate is explored in this research. The fine aggregate (M-Sand) is substituted by varying the waste glass powder as 0 percent, 5 percent, 10 percent, 15 percent, 20 percent, 25 percent, 30 percent, 35 percent, 40 percent, 45 percent, and 50 percent, and the mixture is cured under atmospheric curing. The impact of the WGP weight percentage on the flexural behavior of GPC beams is analyzed. The conduct of RGPC beams varies from that of ordinary Portland Concrete (OPC) beams, which is defined and examined. Deflection, ductility factor, flexural strength, and toughness index were measured as flexural properties for beams. In contrast to the reference beams, the RGPC beams containing 50% Waste Glass Powder as fine aggregate demonstrated a major increase in cracking resistance, serviceability, and ductility, according to the experimental finding. The RGPC beam without WGP ended in failure with a brittle manner whereas those beams with WGP encountered ductile failure. The RGPC beams' load ability improved by up to 50% as the weight percentage of WGP was enhanced.

Analytical Study on the Flexural Behavior of Reinforced Concrete Beam with Mineral Admixture under Calcium Leaching Degradation

2018 ◽  
Vol 940 ◽  
pp. 123-127
Author(s):  
Il Sun Kim ◽  
Yoon Suk Choi ◽  
Chan Kyu Lee ◽  
Eun Ik Yang
Keyword(s):  
Finite Element ◽  
Load Capacity ◽  
Pure Water ◽  
Reinforced Concrete Beam ◽  
Mineral Admixture ◽  
Flexural Behavior ◽  
Mineral Admixtures ◽  
Finite Element Program ◽  
Calcium Leaching ◽  
Element Program

Calcium leaching degradation could be happened in reinforcement concrete member due to the contact with pure water in underground condition. Thus, it is needed to evaluate the resistance of calcium leaching for concrete mixed with mineral admixtures. So, in this paper, to evaluate the flexural behavior in RC member with mineral admixture under calcium leaching degradation, we investigated the effect of calcium leaching using the non-linear finite-element program. From the results, the load capacity and flexible rigidity of a degraded RC member decrease when the degradation level increases with leaching period. And, regardless of the type of mineral admixtures, finite-element-method analysis effectively showed the characteristics of calcium leaching damaged RC beam.

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