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Fig. 1 highlights the increase in research interest on the topic of seawater-mixed concrete and concrete exposed to seawater, in the last few decades. The result of an article search across research databases with the string 'concrete and seawater', includes articles related to concretes exposed to seawater, concretes cured with …
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The study aims to address the depletion of river sand by integrating sea sand as a fine aggregate in the production of Self-Compacting Concrete (SCC) through a …
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Abstract. Contradictory results have been published on the effect of sea sand and seawater in concrete as opposed to conventional river sand and freshwater. …
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river sand in the concrete production. However, there is a dearth of literature on studies to find the suitability of using washed soil as a partial or full replacement for river sand as the fine aggregates in concrete production. Thus, there is a knowledge gap related to performance of washed soil as a fine aggregate in concrete in terms of
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The increasing demand for river sand, driven by infrastructure development, poses environmental challenges. The study aims to address the depletion of river sand by integrating sea sand as a fine aggregate in the production of Self-Compacting Concrete (SCC) through a Systematic Literature Review. Furthermore, it includes an in-depth …
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Fine aggregate commonly known as sand is an inert material widely used for construction works. From concrete production to mortar, asphalt, and even t. ... Sea Sand: Derived from seashores, sea sand may contain salt and other impurities. It requires thorough washing before use in concrete due to the potential presence of chlorides, …
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Experiments were conducted to determine the suitability of iron ore tailings and quarry dust as fine aggregates replacement of river sand for concrete production, and thereby to utilize the ...
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ABSTRACT We investigated the suitability of sea sand for concrete production. Our aim is to compare compressive strength, textural properties and salt contents with respect to grade 30 concrete ...
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Assessment of natural sand being used as fine aggregate for concrete production in Ibadan and its environs was carried out. Ten sources (F1 – F10) were selected for the study; four (F5, F6, F7 ...
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The primary objective of the research is to evaluate the suitability of Ambo Sandstone Fine Aggregate (ASFA) as an alternative replacement of river sand in normal concrete production. ... concrete strengths, river …
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River sand is currently the main sand used for construction, but the extraction of river sand as fine aggregate has adverse effects on river ecosystems, navigation, and flood control [].Now we should look for the new aggregates which are more environmentally friendly [].Recently, a number of new methods have been developed for …
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The most commonly used in construction is a fine aggregate from river sand or pit sand. Fine and coarse aggregates constitute about 75% of total concrete by volume. It is, therefore, essential to obtain right type and best quality aggregates at sites, because the aggregate forms the main components of the concrete mixture or mortar 3.
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In 2011, approximately 70 million tonnes of fine aggregate was used in producing ready-mixed concrete in Japan, with desalted sea-sand accounting for 12.2% (8.54 million tonnes), river sand 13.9%, mountain sand …
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The hardening process occurs because of the continuous chemical reaction between water and cement [7] [8]. 2.2. Sea Sand Instead of Fine Aggregate Sea sand is sand taken from the shores of the beach, the shape of the grains are smooth and round due to friction with each other [9]. This sand is bad because it contains a lot of salt.
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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 …
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It is observed that specimens with 20% percent and 30% replacement of fine aggregate by sea sand had their compressive strength 31% and 5% higher than the control mix. Increase in strength at 20% replacement shall be attributed to optimum filling of voids in concrete by fine particles of sea sand. Download: Download high-res image …
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Fine aggregate is most conventionally found from river basins. It can also be manufactured as gravel in small size by crushing a basaltic stone [1], [1]. Natural river sand, which is one of the principal constituent of concrete, is commonly used as fine sand in concrete production as it is the cheapest natural material.
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DOI: 10.12691/AJCEA-6-4-2 Corpus ID: 55263044; Suitability of Ambo Sandstone Fine Aggregate as an Alternative River Sand Replacement in Normal Concrete Production @article{Ararsa2018SuitabilityOA, title={Suitability of Ambo Sandstone Fine Aggregate as an Alternative River Sand Replacement in Normal Concrete …
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Download Citation | On Jan 10, 2013, D. Dolage published Offshore Sand as a Fine Aggregate for Concrete Production | Find, read and cite all the research you need on ResearchGate
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The aim of this study is to test the relevant properties of offshore sand obtained soon after dredging and to examine the effects on chloride levels of offshore sand when fresh water is drained to simulate average monthly rainfalls. The findings are valid for offshore sand that does not require washing particularly to remove organic matter and …
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The ultimate objective of this research is to study the practical utilization of sea sand as fine aggregate partially and to study the properties of mineral extracted sea-shore soil. It also includes thedetermination of the strength of concrete with sea sand, as fine aggregate as partial replacement. 2. Materials and methods
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High chloride ion concentration is the main obstacle to use sea sand as the fine aggregate for reinforced concrete structures. The chloride ion on the surface of …
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Chandrakeerthy SR de S. Suitability of sea sand as a ne aggregate for concrete production. Transactions, Institution of Engineers, Sri Lanka, 1994, p. 93114. Marine aggregates in concrete, Digest 473. Building Research Establishment, Watford, UK, 2002. Gutt W, Collins RJ. Sea dredged aggregates in concrete, Information Paper.
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In case of 80% replacement of sea sand as fine aggregate the Characteristic compressive strength is reduced by 49.37%. It is observed that for replacement of sea sand as fine aggregate in concrete compressive strength is reduced by 53.82%. Usage of Sea sand in concrete found there is a
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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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In this investigation, four types of sands as alternatives to river sand, namely, crushed sand (CS), marine sand, fine recycled concrete aggregate (FRCA), …
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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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SEA SAND AS FINE AGGREGATE FOR CONCRETE PRODUCTION SAMRAJ P ME (CMASE) Under the guidance of Dr.V.NAGARAJAN OBJECTIVE • To find out a suitable method to reduce the salinity in the …
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In case of 80% replacement of sea sand as fine aggregate the Characteristic compressive strength is reduced by 49.37%. It is observed that for replacement of sea sand as fine aggregate in concrete compressive strength is reduced by 53.82%. Usage of Sea sand in concrete found there is a significant reduction in strength of the concrete.
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building structure. Aggregates, both fine and coarse, take about 6575% by volume of concrete and are - important ingredients in concrete production. The quality of concrete produced is much influenced by the properties of aggregate. The dominant rock for coarse aggregate production in Ethiopia is generally basalt
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AbstractContradictory results have been published on the effect of sea sand and seawater in concrete as opposed to conventional river sand and freshwater. ... Evaluating the Suitability of Nanoclay-Modified Asphalt Binders from 10°C to 70°C ... A. Arokiaprakash, and S. Karthiga. 2017. "Study on use of coral sand as fine aggregates …
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The results showed that the use of sea sand as a substitute for fine aggregate showed an average compressive strength in 7 days of 18.86 MPa, an average compressive strength of 14 days...
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The primary objective of the research is to evaluate the suitability of Ambo Sandstone Fine Aggregate (ASFA) as an alternative replacement of river sand in normal concrete production.
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American Journal of Civil Engineering and Architecture 141 forms the main components of the concrete mixture or mortar [3]. In the current situation, the scarcity of natural or river sand has become a problem for the construction industry in Ethiopia. Due to booming construction activities nationwide, natural or river sand resources are increasingly …
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Sea sand is considered safe for concrete when the shell particle size is less than 4.75 mm, and conditions such as substituting sea sand in concrete within the range of 20%− 40% are met. (3) Sea sand significantly influences the mechanical properties of …
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The main objective of this project is to utilize the sea sand as fine aggregate in concrete for construction after the removal of chloride content from the sea sand by using sand washing process. 1) To study the practical utilization of sea sand as fine aggregate by partially and completely.
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