DOI: 10.1007/s41062-023-01355-8 Corpus ID: 267156187; A solution of sea sand as a sustainable fine aggregate: control harmful chloride ion by electric field force @article{Mao2024ASO, title={A solution of sea sand as a sustainable fine aggregate: control harmful chloride ion by electric field force}, author={Jianghong Mao and Changyu …

Concrete with higher seashell ratio has lower physical and mechanical properties. •. Ground seashell aggregate can replace up to 20% natural fine aggregate in concrete. •. Up to 50% seashell as a partial coarse aggregate can give normal-weight concrete. •. Current data on durability of seashell aggregate concrete indicate varied …

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. …

Findings. The results showed a reduction in compressive strength when 50 per cent of sea shells were used as an aggregate replacement, for both sand and gravel, compared to the control sample. Crushed and graded sea shells used in concrete displayed a lower porosity/permeability than plain concrete.

The specimens made with crushed refractory brick as fine aggregate along with sand for four different percentage variation (25,50,75, and ) along with or without cement (0 and ) for ...

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 …

FINE AGGREGATE :- The size of aggregate 4.75mm & smaller is called fine aggregate. Sand is generally considered to have a lower size limit of about 0.07mm. Material between 0.06-0.002 mm is classified as silt. Particles smaller than 0.002 mm are termed as clay. Loam is a soft deposit consisting of sand, silt & clay in about equal …

Concrete cubes were prepared using proportions of 1:0, 1:1, 1:3, 3:1 and 0:1 periwinkle shells to river gravel by its weight, as coarse aggregate. The periwinkle gravel concrete cubes were tested for its compressive strength. The bulk density of the periwinkle shells was found to be 515 kg/m3 while that for river gravel was found to be 1611 kg/m3.

7. Classification & properties of recycle aggregate concrete Material composition is the basis for classification of recycled concrete aggregate in two main types- 1) Crushed concrete 2) Mixed material Each of these types is divided in a class for bound and a class for unbound use Crushin g age Bulk specific gravity Bulk density Absorp tion …

The mechanical characteristics of geopolymer concrete made with sea sand as the fine aggregate were researched by Khoa et al. [150]. The geopolymer concrete reached a high compressive strength when 35–40% of alkaline fly ash was applied, and the mechanical performance between geopolymer concrete prepared with sea sand or river …

Aggregates ppt. Aggregates ppt Latif ... Sand The first type of fine aggregate is Sand. Sand is little particles of silica. Larger particles are categorized as gravel; smaller particles are categorized as silt or clay. ... Pit Sand Sand from a pit, as distinct from river or sea sand. When we washed and screened it is good sand for …

Calculation of Fineness Modulus of Sand. Let us say the dry weight of sample = 1000gm After sieve analysis the values appeared are tabulated below. Therefore, fineness modulus of aggregate = (cumulative % retained) / 100 = (275/100) = 2.75 Fineness modulus of fine aggregate is 2.75. It means the average value of aggregate is in between the 2 nd ...

The uncompacted voids in fine aggregates test, also referred to as the fine aggregate angularity test, is the most commonly used method for evaluating fine aggregate shape and texture. This …

River Sand: Extracted from riverbeds, river sand is a common natural fine aggregate. It is often well-rounded and has a variety of particle sizes. However, indiscriminate sand mining from rivers can lead to environmental concerns and ecological imbalances. Sea Sand: Derived from seashores, sea sand may contain salt and other …

Stone dust can substitute river sand as fine aggregate in concrete. Ceramic waste can replace 10–20% of coarse aggregates without impacting material structure. Ceramic waste can replace coarse aggregates [17]. The mechanical characteristics of normal concrete with quarry dust (2011). In the experiment, quarry dust replaced sand …

In the present study manufactured sand with varying proportions from 0 to 40 % by its weight are mixed with concrete materials as a partial replacement with fine aggregates & analysed for its ...

Sea sand is one such alternative tried as fine aggregate in many countries. The present paper reviews the current status of utilization of sea sand as fine aggregate in concrete and its effect on ...

Abstract. 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 …

Sea-sand contains more salt than river sand, as well as seashell particles and other potentially harmful substances. The salt and seashell particles in sea-sand …

The maximum quantities of clay, fine silt, fine dust and organic impurities in the sand / marble dust shall not exceed the following limits: (a) Clay, fine silt and fine dust when determined in accordance within not more than 5% by mass in IS 2386 (Part-II), natural sand or crushed gravel sand and crushed stone sand. (b) Organic impurities …

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 of 25.52 ...

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 sea sand mainly exists in the form of sodium chloride with electric field migration characteristics. This paper developed a solution of sea sand as a sustainable fine aggregate for chloride ion …

The concrete mix M4 (50% USS + 50%QD) is the optimum mix for complete replacement of river sand with both sea sand and quarry dust as fine aggregate. b) The 28-day compressive strength is maximum for the M6 mix ( QD) is 40.8 ± 1.15 MPa and lowest is for M2 mix ( USS) is 29.7 ± 0.90 MPa among all excluding control mix.

Size of Fine Aggregate Is. The size of fine aggregates is defined as 4.75mm or smaller. That is, aggregates which can be passed through a number 4 sieve, with a mesh size of 4.75mm. Fine aggregates include things such as sand, silt and clay. Crushed stone and crushed gravel might also fall under this category.

River sand has been the most popular choice for the fine aggregate component of concrete in the past, but overuse of the material has led to environmental concerns, the …

The following tests on fine aggregate were done based on IS 2386-1968 (Part 3) Table -3: Properties of Fine aggregate S.NO Particulars of test Test results 1 Specific gravity 2.56 2 Fineness modulus 3.4% 3 Bulking of sand 4% 4 Sieve analysis Zone II 6.3 Coarse Aggregate In the present investigation crushed stone aggregate of 20mm …

Aggregates ppt; 30. Match case Limit results 1 per page. Aggregates ppt. Download PPT Report. Upload latif-hyder-wadho. View 9.625 ... Sea Sand: It consists of fine rounded grains of brown colour and it is collected from sea shores or sea beaches. Sea sand usually contains salts and while using that in mortar, etc, causes disintegration of the ...

Microsoft PowerPoint - principles of concrete mix design.ppt [Compatibility Mode] New Generation Concrete needs use of Special Materials in addition to above i.e. "ADMIXTURES". Admixtures may be Mineral or Chemical Admixtures. expected to serve, be mixed, transported and compacted as efficiently as possible and. will be as …

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 …

Introduction to fine aggregates: The maximum size used is 80 mm and the range of 80 mm to 4.75 mn is known as coarse aggregate and 4.75 to 150 µm is called fine aggregate. Size 4.75 mm is common for both fine and coarse fractions. Qualities of fine aggregates: Fine aggregate should be clean i.e. it should be free from lumps, organic material, etc.

FINE AGGREGATE - M-SAND. FINE AGGREGATE TEST RESULT Sl. No. 1 Test Parameter Sieve Analysis (Passing on IS Sieve) Unit Result Requirement As . 74 13 26KB Read more

This paper presents the design of concrete mixes made with sea sand as partial and complete replacement of fine aggregates. Various …

Moreover, the land resources in these areas are precious, and the cost of landfill disposal is high. For this reason, while using sea sand to replace river sand, waste glass can also be crushed and be used as coarse aggregates to prepare a new type of seawater sea sand glass aggregate concrete (SSGC).

In the making of concrete, up to 70–80% volume is constituted by the aggregates that help in hardening. M-sand was used in this project as a fine aggregate with an all-out size of 4.75 µm is confirming to zone II grade. Graded crushed rock is used as a coarse aggregate throughout this project.

Sand and gravel aggregate is a collective name for materials such as sand, gravel, crushed stone, block stone, and dressed stone. It is a basic material for the production of concrete, mortar, asphalt mixture, etc., and is mainly used for infrastructure construction such as high-rise buildings, highways, railways, bridges, municipal …

Sand researches around the world are in continuous search for the alternatives of sand. Fine aggregate is an important constituent of concrete and is required in large quantities. Generally, river sand is used as fine aggregate. ... S.R.De S., 1994. Suitability of Sea Sand as a Fine Aggregate for Concrete Production. 01, P 93-114 5. …

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 …

This paper presents a critical review of existing studies on the effects of using sea-sand and/or seawater as raw materials of concrete on the properties of the …