Physical properties of fine aggregate pdf

Gradation cleanliness hardness abrasion, wear, and degradation aggregate shape the goal of this lesson is that you participate in at least one lab related to each key aggregate characteristic. Physical and mechanical properties of foam concretes. Physical properties of polyester polymer concrete composite. The specific gravity may be expressed as bulk oven dry o. The detailed data on properties of these materials are reported elsewhere 14. The physical and chemical properties of cfa are given in tables 1 and 2, respectively. Tests for mechanical and physical properties of aggregates. Aggregates are the most mined materials in the world. Physical properties of aggregates 1 porosity sand scribd. Some natural aggregate deposits, called pitrun gravel, consist of gravel and sand that can be readily used in concrete after minimal processing. Therefore, current experimental results are applicable for normal, spherical and angular shaped eaf slag fine aggregate concrete irrespective of wc. The physical properties of these specimens were then investigated by compressive strength test, flexural strength test, water absorption test, hot water resistance test, measurement of pore distribution and observation of. Physical properties of aggregates 10 fine aggregate angularity measured on 2. For the recycling of rapidcooled steel slag rcss, various specimens were prepared with the different replacement ratios of rcss and the addition ratios of polymer binder.

It has known and deep settled that, its fine aggregates are used nearly as filling constitutes to reduce the cement percent with the concrete past. No restrictions are placed on organic impurities in fine aggregate for use in other types of construction. Pdf the effect of the using waste marble dust as fine. It is based on increasing the amount of fine material without. Physical properties of aggregates 19 fine aggregate angularity traffic depth from surface esals 100 mm. Quartzite, basalt, sintered fly ash sandstone bloated clay aggregates can also be classified on the basis of the size of the aggregates as coarse aggregate and fine aggregate. One source of fine aggregate was utilized in this investigation for the high. The current manuscript presents a detailed study on physical properties of aggregates procured from all seventeen districts in gujarat india, having coarse aggregate availability.

Physical properties of fine and coarse aggregate uwmilwaukee. Grading grading is the particlesize distribution of an aggregate as determined by a sieve analysis using wire mesh sieves with square openings. Test methods for other properties of aggregates will be covered by the following european standards. The properties of the end product depend not only on the various constituent materials listed above but also on the way they are proportioned and mixed, as well as on the methods of placing and curing the composite. Each material was characterized for physical and chemical properties in accordance with the appropriate astm standards. Pdf assessment of physical properties of coarse aggregates in. The role of fine aggregate can be described in few points. Aggregates for concrete bination of gravels or crushed stone with particles predominantly larger than 5 mm 0. J which physical and chemical properties are largely affected by surface area soil structure. Textural characteristics of fine aggregate efficiency on.

In this post, we will see about aggregate properties and its usage. Aim of this study is to study the possibility of replacing fine aggregate with mixture of plastic waste and glass waste in cement concrete. Pdf the effect of the using waste marble dust as fine sand. Characteristic studies on the mechanical properties of. In this study tests on physical properties of fine aggregate are carried out in the laboratory for both natural sand and manufactured sand. High temperature influence on concrete produced by spherical. Chemical compositions and physical properties of portland cement kubsia used. Fine aggregates quality also influence the mixture proportions and hardening properties. Aggregate particles have certain physical and chemical properties which make. A maximum size up to 40 mm is used for coarse aggregate in most structural applications, while for mass concreting purposes such as dams, sizes up to 150 mm may be used. Properties of aggregates also has effect on resulting concrete. Jan 14, 2015 physical properties of aggregates strength hardness toughness durability porosity water absorption 12.

Natural sand, crushed stone dust or manufactured sand by crushing rock. Fine aggregates provide dimensional stability to the. Data can be simple single value or can be grouped and stored in pages. The methodology for determining the fractional parts of an aggregate particle, pores versus solids and interstitial voids in the bulk volume are shown.

Introduction aggregate is one of the basic constituents of concrete. Aggregates consisting of materials that can react with alkalies in cement and cause excessive expansion, cracking and. Aggregates coarse aggregates 5 mm fine aggregates pdf available. The whole sample is filled into a cylindrical steel cup firmly fixed on the base of the machine. Aggregate aggregate is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.

Properties of concrete with coconut shells as aggregate replacement 22 2. As expected, a lightweight aggregate will have a lower modulus than. The purpose of the fine aggregate is to fill the voids in the coarse aggregate and to act as a workability agent. Physical properties effect soil texture on soil aggregate stability figure 5 and figure 6 showed the sand 23, silt24 and clay fractions 8, 25 have each been cited assoil. The properties of the rock, from which the aggregates are formed, depend on the properties of constituent materials and the nature of bond. Rocks that undergo volume changes due to wetting and drying are rare. The physical properties of the cement tested according to indian standards procedure constituent material. The important characteristics of aggregates for concrete are listed in table 52 and most are discussed in the following. The test specimens consisted of a 1in cube, a viin cube, and three 0. Fine aggregates contain particles in the size range 75 m to 4. Freezing can cause internal stresses to build up as water inside the aggregate freezes and expands. Aggregate particles have certain physical and chemical properties which make the aggregate acceptable or unacceptable for specific uses and conditions. It is not possible to predict the strength and other concrete properties solely based on the. A higher aggregate modulus will result in a concrete having a higher modulus.

One of the physical properties of aggregate that influence the property of concrete is the grading of aggregate. Aggregate properties and use of indexes inside aggregate. Organic impurities are the only concern in fine aggregates. Source almost all natural aggregate materials originate from bed rocks. Mar 11, 2017 aggregate aggregate is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. However, it is fact that wc does not influence the loss of physical and mechanical properties of concrete due to high temperature exposure. The elongation index is the total weight of the material.

Gradation cleanliness hardness abrasion, wear, and degradation aggregate shape. Aggregation creates intraaggregrate and inter aggregate pore space, thereby changing flow. Concrete aggregates function, properties, characteristics. The effect of some soil physical and chemical properties. Jan 20, 2020 however, it is fact that wc does not influence the loss of physical and mechanical properties of concrete due to high temperature exposure. Aggregates types of aggregates coarse aggregate, fine. This parameter is used as a screening tool to select.

Assessment of physical properties of coarse aggregates in. Objectives to understand the grading specification of the aggregates. Comparison of physical properties between natural sand and. Elongation index the elongation index on an aggregate is the percentage by weight of particles whose greatest dimension length is greater than 1. However, aggregate is susceptible to volume change during freezing and thawing cycles. Mix proportions in order to investigate properties of cs concretes, six mixes were employed. Properties of aggregates and its values for use in construction. Physical properties the physical properties of aggregates are those that refer to the physical structure of the particles that make up the aggregate. Development of a database for surface energy of aggregates. The quality and fine aggregate density strongly influence the hardened properties of the concrete the concrete or mortar mixture can be made more durable, stronger and cheaper if you made the selection of fine aggregate on basis of grading zone, particle shape and surface texture, abrasion. En 933, tests for geometrical properties of aggregates en 67, tests for thermal and weathering properties of aggregates. Aggregates coarse aggregates 5 mm fine aggregates physical and mineralogical properties of aggregates must be known before mixing concrete to obtain a desirable mixture. Gradation cleanliness hardness abrasion, wear, and degradation aggregate shape the goal of this lesson is that you participate in at least one lab related to. In the first tier, an energybased parameter termed the energy ratio er is calculated using the surface energy measurements.

However, sieve test is very important in determining the gradation or aggregate particle presence within a given mixture. Aci 2r03 guide for structural lightweight aggregate concrete and astm 169 d lightweight concrete and aggregates both are excellent references. Physical properties of aggregates strength hardness toughness durability porosity water absorption 12. Aggregates generally occupy 65 80% of a concretes volume. Baied on this finding, calcium aluminate cement and distilled water were mixed with the lunar soil to fabricate test specimens. Aggregation creates intraaggregrate and interaggregate pore space, thereby changing flow.

Coarse aggregate was then replaced with cs in 10 m2, 15 m3, 20 m4 percentages to study effect of cs replacement. Properties of concrete with coconut shells as aggregate. We will also discuss about various indexes, etc that can be used inside aggregate properties. High temperature influence on concrete produced by. One property is the modulus of elasticity of the coarse aggregate. Sieve analysis test lab report 1054 words bartleby. Typically, coarse aggregate sizes are larger than 4. The internal pore characteristics are very important properties of aggregates. Concrete is by far the most versatile and most widely used construction material worldwide.

Various tests are carried out to determine the properties of fresh and harden concrete of m25 grade with. The current experimental study indicated that, the textural characteristics of fine aggregate are having a vital role of concrete properties at fixed fmvalues of fine aggregates. Fine aggregate is the essential ingredient in concrete that consists of natural sand or crushed stone. Aim and objectives aim to demonstrate the how laboratory test can be used to assess the physical properties of aggregate intended to be used in concrete. Physical properties of polyester polymer concrete composite using rcss fine aggregate p. Physical properties of aggregates 1 free download as word doc. The elongation index is not applicable to sizes smaller than 6. Strength of aggregates in practice, majority of normal aggregates are considerably stronger than concrete a good average value of crushing strength of aggregates is 200nmm2. The current manuscript presents a detailed study on physical properties of aggregates procured from all seventeen districts in gujarat. Flakiness index the flakiness index of aggregate is the percentage by weight of particles in it whose least dimension thickness is less than threefifths of their mean dimension. Fresh concrete was then casteconfirms to the requirements of is 12269 and the physical properties are given in table 1.

The study revealed that substituting the very fine aggregate passing. The arrangement and organization of soil particles in the soil, and the tendency of individual soil particles to bind together in aggregates. The limitations on the amount of organic impurities allowed in fine. Aggregate impact value the aggregate impact value gives relative measure of the resistance of an aggregate to sudden shock or impact. Properties of aggregates construction aggregate porosity. Material passing 75 m sieve should not be 4% by weight. The elastic modulus and abrasion resistance of the concrete can be influenced with fine aggregate.

Physical properties of structural lightweight concrete the information present in chapter 6 and 7 is also covered in a more general way in. En 932, tests for general properties of aggregates. The properties of the rock, from which the aggregates are formed, depend on the properties of constituent materials and the nature of bond between them. Currently, only the use of coarse aggregate derived from construction or demolition waste is recommended for use in new concrete construction. Materials utilized for this project consisted of cfa, cement, fine aggregate, coarse aggregate, and coal fly ash. The key physical properties or characteristics are.

The properties of the coarse aggregate used in a concrete mixture affects the modulus for a few reasons. Fine aggregate degradation index of aggregate quality. The flakiness index is taken as the total weight of the. Based on the origin, natural rocks are classified as igneous, sedimentary and metamorphic rocks.

Download as doc, pdf, txt or read online from scribd. Depending on composition, shape, size and other properties of fine aggregate you can have a significant impact on the output. The test is not applicable to sizes smaller than 6. An experimental study on the properties of foam concretes, made with a proteinbased foam agent, containing fly ash fa as binder and granulated blast furnace slag gbs as fine aggregate is presented in this paper. Its quality is of considerable importance because about threequarter of the volume of concrete is occupied by aggregates. Fine aggregates provide dimensional stability to the mixture.

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