Corrosion behavior of concrete mixes with masonry chips as coarse aggregate

Manzur, Tanvir; Baten, Bayezid; Hasan, Md. Jihan; Akter, Halima; Tahsin, Adhora; Hossain, Khandaker M. Anwar

doi:10.1016/j.conbuildmat.2018.07.033

Cited by 23 publications

(6 citation statements)

References 22 publications

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“…Nevertheless, Ge et al [45] revealed that concrete's resistance to chloride ion penetration improved. Furthermore, corrosion of steel in samples containing RBA initiated earlier than that in samples with natural aggregates; the existence of RBAs accelerated the corrosion of steel reinforcement [36,53,66].…”

Section: Durability Of Rbacmentioning

confidence: 93%

“…Additionally, the mixed use of CBP and RBA could yield better RBAC performances [48,59], likely because the fine RBA particles formed a compact and dense ITZ of mortar and filled the pores of RBAC. Manzur et al [66] found that the corrosion susceptibility of concrete increased with the increase of water-cement ratio; moreover, a concrete mix with higher compressive strength was beneficial to concrete corrosion resistance, because it meant that the concrete will have a greater density and a lower permeability, resulting in less chloride ions entering. In addition, fibre can effectively inhibit the development of cracks and improve the toughness and deformation capacity of concrete [64].…”

Section: Design Of Rbacmentioning

confidence: 99%

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Reuse of Clay Brick Waste in Mortar and Concrete

Zhu

2020

Advances in Materials Science and Engineering

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The application of recycled clay brick can not only solve the disposal problem of demolished solid waste but also reduce ecological environment damage caused by the excessive development of resources. Clay brick powder (CBP) exhibits pozzolanic activity and can be used as cement replacement. Recycled clay brick aggregate (RBA) can be used to substitute natural coarse aggregate. Recycled clay brick aggregate concrete (RBAC) can attain suitable strength and be used in the production of medium- and low-strength concrete. Clay brick waste as potential partial cement and aggregate replacement material is reviewed herein. Performances in terms of mechanical and durability-related properties of mortar and concrete are discussed. Understanding the properties of clay bricks is crucial to further research and applications.

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Section: Durability Of Rbacmentioning

confidence: 93%

Section: Design Of Rbacmentioning

confidence: 99%

Reuse of Clay Brick Waste in Mortar and Concrete

Zhu

2020

Advances in Materials Science and Engineering

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“…This property is of particular importance in regions where the risk of chloride induced steel corrosion are high. As such, the use of CMBR increases the likelihood of chloride induced steel corrosion [25]. The higher the amount of crushed masonry rubble used, the higher the chances of steel compromise.…”

Section: Chloride Conductivity Indexmentioning

confidence: 99%

Assessing The Mechanical And Durability Performance Of Concrete Made Using Recycled Clay Masonry Rubble Bricks (CMRB) As Coarse Aggregates

2022

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The South African construction industry is currently faced with mounting construction waste and overflowing landfills. Consequently, the feasibility of using of clay masonry rubble brick (CMRB) as a partial replacement for natural coarse aggregate in concrete was investigated. Three concrete mixes were made using a water-to-binder (w/b) ratios of 0.60. A control mix as well as a mix containing 50% and 100 % replacement of coarse Andesite aggregate with CMRB as coarse aggregate was tested. The compressive strength, shrinkage and durability properties (with respect to oxygen permeability, water sorptivity and chloride conductivity) were assessed. The results show that the incorporation 100% MCR brick as coarse aggregate produced the lowest compressive strength result, the highest shrinkage rate and the least resistance to gaseous ingress and chloride conductivity. The concrete mix containing 50% MCR brick exhibited the least resistance to water absorption through capillary action. The mechanical and durability properties of both concrete mix containing MCR brick was largely affected by the porous nature of coarse masonry rubble. The results can be attributed to a relatively high void ratio leading to the presence of more interlinked pathways within the CMRB aggregate.

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“…To assess the corrosion risk of reinforcement in concrete specimens, the most common methods are linear polarization resistance (LPR) [27] and electrochemical impedance spectroscopy (EIS) [28]. Recently, the accelerated corrosion test (ACT) has been widely used among researchers to induce corrosion of steel embedded in concrete for a relatively short period [29,30,31]. They measured half-cell potential readings using a half-cell potentiometer (HCP) positioned at different points on the concrete prisms to quantify the high impedance potentials in the concrete, which indicated the probability of corrosion.…”

Section: Experimental Programmentioning

confidence: 99%

Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM

2019

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The present study aims to investigate the impact of thermal energy storage aggregate (TESA) and nano-titanium (NT) on properties of structural concrete. TESA was made of scoria encapsulated with phase change materials (PCMs). Coarse aggregates were replaced by TESA at 100% by volume of aggregate and NT was added at 5% by weight of cement. Compressive strength, probability of corrosion, thermal performance, and microstructure properties were studied. The results indicated that the presence of TESA reduced the compressive strength of concrete, although the strength was still high enough to be used as structural concrete. The use of TESA significantly improved the thermal performance of concrete, and slightly improved the resistance of corrosion in concrete. The thermal test results showed that TESA concrete reduces the peak temperature by 2 °C compared to the control. The addition of NT changed the microstructure of concrete, which resulted in higher compressive strength. Additionally, the use of NT further enhanced the thermal performance of TESA concrete by reducing the probability of corrosion remarkably. These results confirmed the crucial role of NT in improving the permeability and the thermal conductivity of mixtures containing PCM. In other words, the charging and discharging of TESA was enhanced with the presence of NT in the mixture.

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Corrosion behavior of concrete mixes with masonry chips as coarse aggregate

Cited by 23 publications

References 22 publications

Reuse of Clay Brick Waste in Mortar and Concrete

Reuse of Clay Brick Waste in Mortar and Concrete

Assessing The Mechanical And Durability Performance Of Concrete Made Using Recycled Clay Masonry Rubble Bricks (CMRB) As Coarse Aggregates

Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM

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