mining sand and sea sand as a fine aggregate
Utilizing of coral/sea sand as aggregates in environment
2022.6.1 • Incorporating coral sand markedly increase the carbonation depth of marine mortar. • Combined use of coral and sea sands in marine mortar can promote
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Feasibility study on use of sea sand as partial replacemnt of fine ...
2022.1.1 Abstract In this study, replacement of sea sand instead of river sand as 20%, 30%, 40% and 50% respectively as partial replacement for fine aggregate. Analysis
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[PDF] Analysis Of Use Sea Sand as A Fine Aggregate
The utilization of sea sand as an alternative to fine aggregate in the manufacture of concrete is motivated by the availability of sea sand in nature in very large quantities. This study
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A review on the physical chemical properties of sea sand
2022.1.1 The purified sea sand concrete showed better strength than the normal river fine aggregate concrete also the corrosion was controllable [24]. This research had used
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Feasibility study on use of sea sand as partial replacemnt of fine ...
2022.1.1 In this study, replacement of sea sand instead of river sand as 20%, 30%, 40% and 50% respectively as partial replacement for fine aggregate. Analysis of the
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Analysis of strength properties of concrete containing sea sand
2023.2.4 Sand is often utilized as a fine aggregate in concrete, contributing 22 to 62% of the total mass. The quantity and features of sand in concrete have an impact on its
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Analysis Of Use Sea Sand as A Fine Aggregate
Sea sand is a material used as a substitute for ordinary sand for a mixture of cement, fine or coarse aggregate and water, with the mixture when poured into a mold and then allowed
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Sand Mining SpringerLink
2021.1.1 Sand mining is the general term for the extraction of sand or aggregate from the continental shelf. Sand, from all sources, is one of the two most utilized natural
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Influence of marine sand as fine aggregate on
understandingthecharacteristicsofMSandM-Sand,physicalpropertiesofMSandM-Sand,aswell asthechemicalpropertiesofwashedandunwashedmarinesandarecompared.Theexperimental
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Feasibility study on use of sea sand as partial replacemnt of fine ...
2022.1.1 Also using of river sand and mining of river bed lead to hazardous environmental effects which has to be stopped. In this paper, an attempt has been made to use washed sea sand as partial replacement of fine aggregate. Jose et al. [8] studied concrete with sea sand, sea water along with M-sand and blast furnace cement. They
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Investigation on behaviour of M-sand and sea sand based
2021.1.1 Sea sand overcomes the upcoming demand in the requirement of the river sand and M-sand as fine aggregate in construction industry [3], [4].Sea sand samples as fine aggregate are collected from the coast of Arabian Sea of India near to the place Snehatheeram beach located in Kerala [6] is the floor of sea shore. Sea sand contains
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(PDF) Influence of marine sand as fine aggregate on
2022.3.1 The purpose of this research is to examine the mechanical, micro-structural and durability properties of concrete and cement mortar made with MS as a fine aggregate in partial replacement of M ...
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Study on sea sand as a partial replacement for fine
2020.5.11 Fine aggregate, sea sand, minerals, concrete, strength 1. INTRODUCTION Fine aggregate is one of the important constituents of concrete and mortar in construction industry (Mehta and Monteiro, 1993). River sand is becoming a scarce material. Sand mining from our rivers has become objectionably excessive. It has
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An investigation on the effect of sea sand on the properties
2021.1.12 The global consumption of river sand as a fine aggregate in the production of concrete and mortar is very high. Unfortunately, in the last 20 years, the obtainability of river sand is reducing and several countries have problems in supplying. One option to solve the scarcity of river sand is to use sea sand in the construction field. In the current paper,
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Materials Free Full-Text Effect of Replacing Fine Aggregate
2023.6.9 Natural river sand resources are facing depletion, and large-scale mining pollutes the environment and harms humans. To utilize fly ash fully, this study used low-grade fly ash as a substitute for natural river sand in mortar. This has great potential to alleviate the shortage of natural river sand resources, reduce pollution, and improve the
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The way forward to sustain environmental quality through
2022.3.24 The main emphasis of this study is focused on a significant increase in marine sand mining. Due to a significant increase in marine sand mining, the seabed fauna and flora are affected as shown in Fig. 4.There is a net decline in faunal biomass due to the extraction and dredging of aggregates from the bottom zone of the sea.
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Materials Free Full-Text Experimental Investigations on the ... - MDPI
2019.2.20 This paper deals with the experimental studies conducted on the effects of using sea sand on the properties of polymer concrete modified using epoxy resin. The physical properties including workability, mechanical properties, and durability properties were evaluated as a function of sea-sand substitution. The results obtained behave as
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The environmental impacts of river sand mining
2022.5.1 Second, the sand particle size at the river mouth may have become too fine for construction purposes (Binh et al., 2020;Collins Dunne, 1990), decreasing mining activities.
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An Investigation into the Use of Manufactured Sand as a
2016.4.13 Manufactured sand differs from natural sea and river dredged sand in its physical and mineralogical properties. These can be both beneficial and detrimental to the fresh and hardened properties of concrete. This paper presents the results of a laboratory study in which manufactured sand produced in an industry sized crushing plant was
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Recent Advances in Alkali-Activated Materials with Seawater and Sea Sand
2023.5.6 When aggregates (sea sand as fine aggregate and basalt as coarse aggregate) were incorporated, samples exhibited an expansion during heating. Similarly, Kong and Sanjayan reported thermal expansion of FA geopolymer concrete containing natural aggregates. Occupying weight ratio by ca. 80%, the thermal behavior of concrete
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Influence of seawater concentration on alkali-silica reaction
2023.8.29 Research of seawater and sea sand concrete (SWSSC) is the current hot topic, but effects of water-cement ratios (W/C) on alkali-silica reaction (ASR) of SWSSC haven't been investigated. To solve this issue, the ASR products, pore structure and expansion rate of specimens with different W/C (0.35 ∼ 0.55) were measured.
اObtener precioMaterials Free Full-Text Effect of Replacing Fine Aggregate
2023.6.9 Natural river sand resources are facing depletion, and large-scale mining pollutes the environment and harms humans. To utilize fly ash fully, this study used low-grade fly ash as a substitute for natural river sand in mortar. This has great potential to alleviate the shortage of natural river sand resources, reduce pollution, and improve the
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Utilizing of coral/sea sand as aggregates in environment
2022.6.1 The mix proportions of marine mortars prepared in this work were listed in Table 5.The fine aggregate in the mix design of marine mortar was changed from sea sand to coral sand at replacement ratios of 0, 20, 40, 60, 80, and 100 vol% by volume fraction, and the marine mortar samples were denoted by SS, CS20, CS40, CS60, CS80, and
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Sand: The Fine Aggregate SpringerLink
2014.1.1 10.2 Sand: The Fine Aggregate. Natural sand is a weathered and worn out particle composite derived originally from primary (igneous) and secondary (metamorphic and sedimentary) rocks. The sand that is to be used in construction purposes must have proper gradation of particles from 150 microns to 4.75 mm (Plate 10.1 ).
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Offshore sand for reinforced concrete - ScienceDirect
2008.7.1 A figure of 0.075% by weight of sand was arrived at as a safe limit for allowable Cl − ion content in offshore sand for OPC based reinforced concrete. A 2 m high sand column was fabricated for checking the effects of natural drainage and simulated rain on the chloride levels in offshore sand, and the action of even 80 mm of rain was found
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Minerals Free Full-Text Effect of Fine Aggregate Particle
2021.8.19 This research aimed to investigate the effect of fine aggregate particles on mechanical properties of fly ash-based geopolymer mortar. In this work, seven kinds of river sand particles were designed based on different fine aggregate characteristics. The fineness modulus was adopted to quantitatively describe the gradation of sands. The fluidity,
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(PDF) Offshore Sand and Gravel Mining - ResearchGate
2009.12.31 Natural aggregates, such as sand and gravel, are today the most mined minerals in the marine environment. While sand was until recently mostly extracted from land quarries and riverbeds to satisfy ...
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Internal curing effect of saturated coral coarse aggregate in
2022.5.9 The effects of the modulus of sodium silicate (M s), Na 2 O-to-binder (N/B) ratio by weight, replacement ratio of the coral sand for sea sand (R s), and water-to-binder (W/B) ratio were considered using the Taguchi orthogonal experimental design method. The experimental results indicated that an increased alkali activator modulus and alkaline ...
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A review on the physical chemical properties of sea sand
2022.1.1 Sea sand is a widely available form of sand on comparing with the river sand. Sea sand is not used widely because it may contain chloride, sea shells in large numbers and other harmful chemicals like Fe 2 O 3, V 2 O 5, Cr 2 O 3, Ga 2 O 3, Br 2 O and Re 2 O 7.The usage of sea- sand may either address the concrete’s existing problems in
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