Experimental Investigations on the Properties of Epoxy-Resin-Bonded Cement Concrete Containing Sea Sand for Use in Unreinforced Concrete Applications

Natarajan, S.; Pillai, Nagendran Neelakanda; Sophia, M.

doi:10.3390/ma12040645

Cited by 25 publications

(5 citation statements)

References 22 publications

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“…[24]. Furthermore, there was a significant enhancement of approximately 30% in compressive strength and 35% in flexural strength observed in air-cured polymer concrete with 20% sea-sand substitution at 180 days, in comparison to conventional concrete [25].…”

Section: Introductionmentioning

confidence: 89%

Strength and durability properties of concrete made with recycled coarse aggregate and seashore sand

Kalaimani,

Srinivasan

2023

Sinergi

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The process of depletion of sources of natural aggregates poses challenges to produce technically and environmentally suitable concrete. Aggregate compositions found in construction and demolition (C&D) waste offer potential alternatives to natural coarse aggregates. Additionally, the utilization of abundantly available natural material like seashore sand, as a replacement for river sand, can present a viable solution to this problem. This research paper investigates the performance of concrete that incorporates 40% recycled coarse aggregates, along with varying percentages of seashore sand as replacements for river sand (0%, 10%, 20%, 30%, 40%, 50%, and 100%). The evaluation focuses on strength properties, including compressive strength tests on cylinders and impact resistance tests, as well as durability properties such as water penetration tests under pressure and sulphate attack tests. The experimental results indicate that concrete incorporating both recycled coarse aggregates and seashore sand replacements yields favorable outcomes in terms of strength and durability when compared to the controlled concrete, particularly at suitable replacement proportions.

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Section: Introductionmentioning

confidence: 89%

Strength and durability properties of concrete made with recycled coarse aggregate and seashore sand

Kalaimani,

Srinivasan

2023

Sinergi

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“…Hasil percobaan menunjukkan bahwa dengan meningkatnya penggantian pasir laut, daya alir dan berat isi kering menurun, sedangkan penyerapan air meningkat. Natarajan et al, (2019). Hasil pengujian terjadi peningkatan yang signifikan pada kuat tekan dan kuat lentur akibat substitusi pasir laut beton polimer.…”

Section: B Studi Terdahuluunclassified

Study Of Concrete Mixture Using Sea Sand With Fresh Water and Sea Water Cure

Arsyad

Lakawa

Ilham

et al. 2023

SCiEJ

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The purpose of this study was to (1) analyze the characteristics of fresh concrete mixed with sea sand (2) to analyze the compressive strength of sea sand concrete with fresh water and sea water curing. In this study, the specimens used were 21 cylinders with a job mix design plan of f'c 25 MPa with a curing duration of 7 days, 14 days, and 28 days. At the age of 7 and 14 days the compressive strength of fresh water curing was 30.29 MPa and 33.12 MPa higher than seawater curing 29.02 MPa and 32.13 MPa, while at 28 days the compressive strength of seawater curing was 37. 08 MPa compared to fresh water curing of 33.97 MPa. Sea sand concrete has a very good quality compared to normal concrete and sea sand can be used in construction projects by taking into account the specifications in accordance with the Indonesian National Standard (SNI).

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“…The main goal of their work was to numerically predict the degradation of a basalt fiber-reinforced polymer bar in the marine environment. Sakthieswaran et al [ 5 ] produced a polymer concrete modified using epoxy resin and sea sand. Their study results showed a significant improvement in the compressive and flexural strength due to the sea sand substitution in the polymer concrete.…”

Section: Introductionmentioning

confidence: 99%

A Promising Mortar Produced with Seawater and Sea Sand

2022

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The aim of the study is the deep understanding of the essential reactivity of the environmentally friendly mortar by which its applicability can be justified. Created in the study was the environmentally friendly mortar, which helped relieve the increasing requirements on conventional building materials that are produced from exhausted freshwater and river sand nowadays. Seawater (SW) and sea sand (SS) collected from the Eastern Seas of China were used to produce the mortar at various ages, including 10-day, 33-day, and 91-day. Both the curing and working conditions of the mortar were natural marine ones. The physicochemical-mechanical behaviors were investigated using uniaxial compression tests (UCTs), Energy Dispersive Spectrometer (EDS), X-ray Diffraction (XRD), and thermal-field emission scanning electron microscopy (SEM) analysis to understand the essential reactivity of the mortar with age accumulation. The results indicated that hydration products and favorable components were generated promisingly in the mortar: the C-S-H (xCaO·SiO2·zH2O) development was certainly achieved in the critical environment during the curing and working period; the extensive generation of C-A-S-H (CaO·Al2O3·2SiO2·4H2O) helped densify the C-S-H grid, which caused the promising development of the uniaxial compression strength (UCS); the framework porosity of the mortar was restrained effectively due to the development of Friedel’s salt that re-bonded the interfacial cracks between SS and the hydration products with the age accumulation in the critical environment. Consequently, UCS and the resistance against damage of the mortar showed increasing behavior even in the critical environment. The study established Friedel’s salt working models and strength and damage models to interpret the physicochemical reactivity of the mortar as: the source of the strength and toughness was the proper polymerization between the native saline components and the hydration product mixture generated throughout the production, curing, and application without the leaching phenomenon. The novel models and interpretation of the physicochemical reactivity ensured the applicability of the mortar produced with SW and SS in the critical environment.

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Experimental Investigations on the Properties of Epoxy-Resin-Bonded Cement Concrete Containing Sea Sand for Use in Unreinforced Concrete Applications

Cited by 25 publications

References 22 publications

Strength and durability properties of concrete made with recycled coarse aggregate and seashore sand

Strength and durability properties of concrete made with recycled coarse aggregate and seashore sand

Study Of Concrete Mixture Using Sea Sand With Fresh Water and Sea Water Cure

A Promising Mortar Produced with Seawater and Sea Sand

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