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Properties of concrete using pebbles as coarse aggregate

  • Vol. 3, Issue 11, November 2014 Experimental Investigation

    ABSTRACT: This study deals with the different properties of Geo Polymer concrete using fly ash and pebbles as coarse aggregate. Potassium hydroxide and sodium hydroxide solution are used as alkali activators. The strength is compared with Geo polymer concrete and conventional concrete. Fly ash-based Geo polymer concrete is a new

  • The Effect of Aggregate Properties on Concrete

    80 percent of the volume and 70 to 85 percent of the weight of concrete. Although aggregate is considered inert filler, it is a necessary component that defines the concretes thermal and elastic properties anddimensional stability. Aggregate is classified as two different types, coarse and fine. Coarse aggregate is usually greater than 4.75 mm

  • Recycled Plastics as Coarse Aggregate for Structural Concrete

    The use of plastic is increasing day by day, although steps were taken to reduce its consumption. This creates substantial garbage every day which is much unhealthy. A healthy and sustainable reuse of plastics offers a host of advantages. The suitability of recycled plastics as coarse aggregate in concrete and its advantages are discussed here.

  • WHAT ARE THE PROPERTIES OF AGGREGATES FOR CONCRETE

    Oct 01, 2016· For the preparation of economical concrete mix on should use largest coarse aggregates feasible for the structure. IS-456 suggests following recommendation to decide the maximum size of coarse aggregate to be used in P.C.C & R.C.C mix. Maximum size of aggregate should be less than. One-fourth of the minimum dimension of the concrete member.

  • Aggregate Properties - The Concrete Portal

    Typically, coarse aggregate sizes are larger than 4.75 mm (5 mm in British code), while fine aggregates form the portion below 4.75 mm. A maximum size up to 40 mm is used for coarse aggregate in most structural applications, while for mass concreting purposes such as

  • Aggregates for Concrete - MERT YÜCEL YARDIMCI

    fillers < 00 (0.149 mm) < fine aggregates < No.4 (4.75 mm) < coarse aggregate < 4 inch (100mm) Aggregates consisting of both coarse and fine particles are called combined or mixed aggregates. Natural mixed aggregates taken from the deposits and used as they occur are called all-in aggregates or pit-run aggregates.

  • PROPERTIES OF RECYCLED AGGREGATE CONCRETE

    recycled coarse aggregate typically ranges within the interval from 3.5% to 10%, and for the fine aggrega-te, within the interval from 5.5% to 13% [2,7]. According to the Japanese standard for the use of recycled aggregate as a component of concrete, there is a limit so that a coarse

  • Effect of coarse aggregate type on mechanical properties

    Feb 01, 1997· The influence of the type of coarse aggregate on the strength of concrete, however, becomes paramount as the quality of the mortar is improved (1). In concrete mixtures, having water-cement ratios (w/c) greater than about 0.4, the strength of the mortar and the bonding of mortar and coarse aggregate are limiting the strength of the material.

  • How does Aggregate Properties Affect Concrete?

    Coarse aggregates have properties such as size, shape, moisture contents, specific gravity, density etc. which affects concrete strength and durability in many ways. These effect of aggregate properties on concrete are discussed in detail. Concrete is a mixture of cementitious material, aggregate and water.

  • THE EFFECT OF CONCRETE COMPOSITION AND

    Feb 24, 2009· type concrete, in most cases, has better properties over the normal concrete: this type is more technological, and all properties of this type of concrete are similar or better. In addition, the over-mortared concrete mix is more economi-cal due to its composition, which allows us to save the coarse aggregates without overdosing the cement.

  • Effect of coarse aggregate type on mechanical properties

    Feb 01, 1997· The influence of the type of coarse aggregate on the strength of concrete, however, becomes paramount as the quality of the mortar is improved (1). In concrete mixtures, having water-cement ratios (w/c) greater than about 0.4, the strength of the mortar and the bonding of mortar and coarse aggregate are limiting the strength of the material.

  • Coarse Aggregate Properties

    Coarse Aggregate Properties. The properties of the coarse aggregate used in a concrete mixture affects the modulus for a few reasons. One property is the modulus of elasticity of the coarse aggregate. A higher aggregate modulus will result in a concrete having a higher modulus. As expected, a lightweight aggregate will have a lower modulus than

  • A STUDY ON RECYCLED CONCRETE AGGREGATES

    structural concrete. Patil.et.al. (2013), this study aimed to evaluate physical properties of concrete using recycled coarse aggregate. In this research, concrete waste fr om demolished structure has been collected and coarse aggregate of different percentages is used for preparing fresh concrete (0%, 25%, 50%, 75% & ). The compressive

  • Concrete Aggregate Properties

    To establish suitability for use in Agency concrete, MnDOT performs concrete aggregate property testing on fine and coarse aggregate sources in accordance with MnDOT Specifications 3126, 3131 and 3137. Concrete Aggregate Properties include: Specific Gravity - Absorption - Sand Fineness Modulus - ASR - Aggregate Class - Use in Bridge

  • (PDF) MECHANICAL PROPERTIES OF CONCRETE USING NICKEL

    Nov 23, 2015· Two mixtures were produced by varying the type of coarse aggregate used: one mixture using slag nickel and another mixture using naturally weathered gravel

  • The Mechanical Properties of Recycled Coarse Aggregate

    Using recycled coarse aggregate (RCA) to replace natural pebbles and using lithium slag (LS) from industrial waste to replace cement in order to improve the mechanical properties of concrete and solve environmental problems. In this study, the effects of different substitution rates of RCA (0, 30%, 50%, and 70%) and different LS contents (0, 10&#x0025;, 15&#x0025;, 20&#x0025;, and 25&#x0025

  • Properties of Concrete Using Treated Low-Class Recycled

    In order to improve physical properties of concrete using recycled coarse aggregate, blast furnace slag sand has been proposed. Recently, blast furnace slag sand is expected to improve durability, freezing, and thawing damage of concrete in Japan. Properties of fresh and hardened concrete bleeding, compressive strength, and resistance to

  • Physical and Thermal Properties of Aggregate and its

    Apr 10, 2020· As can be observed from the above figure, the maximum bulk density of a mixture of fine and coarse aggregates is achieved when the mass of the fine aggregate is around 35 to 40% of the total mass of the mixture; Corresponding to the maximum bulk density of a mixture of fine and coarse aggregates, there is minimum cement paste requirement (because of minimum remaining volume of

  • What Is Coarse Aggregate Requirements of Good Coarse

    Jan 05, 2021· Aggregate is one of the most important component parts of the concrete. Coarse Aggregates gives volume to the Concrete. Coarse Aggregates in concrete provides body and strength to the concrete and acts as a filler material which will give the homogeneous mass of the concrete.

  • Vol. 3, Issue 11, November 2014 Experimental Investigation

    ABSTRACT: This study deals with the different properties of Geo Polymer concrete using fly ash and pebbles as coarse aggregate. Potassium hydroxide and sodium hydroxide solution are used as alkali activators. The strength is compared with Geo polymer concrete and conventional concrete. Fly ash-based Geo polymer concrete is a new

  • TR 11 Properties of New Zealand Concrete Aggregates

    Coarse aggregate was a high strength, well shaped stone with low absorption characteristics. Table 2.2: Hardened Concrete Properties (28 days unless noted otherwise) Water/cement ratio: 0.5 0.6 0.6A 0.7A

  • Aggregates for Concrete

    AGGREGATES FOR CONCRETE E1-3 sieve and predominantly retained on the 75 µm (No. 200) sieve is called fine aggregate or sand, and larger aggregate is called coarse aggregate. Coarse aggregate may be available in several different size groups, such as 19 to 4.75 mm (3/4 in. to No. 4), or 37.5 to 19 mm (1-1/2 to 3/4 in.).

  • Aggregates for Use In Concrete

    Aggregates for Use In Concrete 2 Learning Objective Develop a basic understanding of aggregates and aggregate properties. 2/12/2015 2 3 Aggregates Fine Consists of natural sand, manufactured sand coarse aggregate MUST pass the 1.5 sieve but 95 -

  • Properties of Concrete Produced with Waste Bottle Caps

    To assess the fresh properties of concrete when coarse aggregates are partially replaced with Waste Bottle Caps (WBC) using orange leaves powder as plasticizer. The coarse aggregate used was crushed gravel with apparent specific gravity of 2.43, water absorption of 1.2%, compacted bulk density of 1568kg/m 3 and having a maximum size of 9mm

  • HOW AGGREGATE PROPERTIES AFFECTS CONCRETE PROPERTIES?

    Apr 27, 2020· Soundness of aggregate -for concrete liable to be exposed the action of frost, coarse and fine aggregates should pass a sodium or magnesium sulphate accelerated soundness test. GRADING OF AGGREGATES: Grading of aggregates is an important aspect as they can influence the various properties of concrete such as cohesion, water demand, workability

  • Concrete Aggregates - Function, Properties

    Coarse aggregate is used to describe particles larger than 4.75 mm, and the term fine aggregate is used for particles smaller than 4.75mm. Fine aggregates contain particles in the size range 75 µm to 4.75 mm, and coarse aggregates from 4.75 to about 40 mm, except for

  • Mechanical Properties of Concrete with Recycled Coarse

    Recycled aggregates use in a mortar along with concrete encompasses mostly the use of coarse recycled aggregates as recycled concrete aggregate (RCA) although the use of fine-sized recycled

  • CONCRETE MIX DESIGN Kumar Properties

    Jan 03, 2019· CALCULATION FOR COMBINED GRADING 97 x 0.3 + 7 x 0.25 + 0 x 0.45 = 30.85. The coarse aggregates of 20mm & 10mm are generally used for concreting. 20mm coarse aggregate is defined as the one that passes through 20mm sieve and is retained on 10mm sieve.

  • (PDF) Evaluation of Concrete Properties made with Mixing

    a comparative analysis of concrete strength using igneous, sedimentary and metamorphic rocks (crushed granite, limestone and marble stone) as coarse aggregate By ahmed talb EFFECT OF CURING TEC DEVELOPMENT OF HIGH CONCRETE FROM 10MM ( OCCURRING GRAVEL AGG

  • Properties of Concrete Using Treated Low-Class Recycled

    In order to improve physical properties of concrete using recycled coarse aggregate, blast furnace slag sand has been proposed. Recently, blast furnace slag sand is expected to improve durability, freezing, and thawing damage of concrete in Japan. Properties of fresh and hardened concrete bleeding, compressive strength, and resistance to

  • What Is Coarse Aggregate Requirements of Good Coarse

    Aggregate is one of the most important component parts of the concrete. Coarse Aggregates gives volume to the Concrete. Coarse Aggregates in concrete provides body and strength to the concrete and acts as a filler material which will give the homogeneous mass of the concrete.

  • Developing Concrete using Sea Shell as a Fine Aggregate

    production was investigated. Physical and mechanical properties of the shells are compared with well-graded river gravel. 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.

  • [PDF] The Effect of Coarse Aggregates Types on Properties

    The main purpose of this study is to investigate the effect of using three types of coarse aggregates (gravel, basalt and dolomite) and three different percentages of water and cement on the properties of selfcompacting concrete. To this end, nine mixes containing different percentages of water and cement were designed. Three types of aggregates were used namely; gravel, basalt, and dolomite.

  • CHAPTER 9 PHYSICAL PROPERTIES OF LIGHTWEIGHT

    2480 kg/m³) made with ordinary aggregates (sand, gravel, crushed stone). Concrete, sand lightweight-Concrete with coarse lightweight aggregate and normalweight fine aggregate. Concrete, semi-lightweight-Concrete made with a combination of lightweight aggregates (expanded, clay, shale, slag or slate or sintered fly ash) and

  • EXPERIMENTAL STUDY ON STRENGTH OF CONCRETE USING

    2.3 Properties of coarse aggregate The material retained on 4.75mm sieve is termed as coarse Aggregate. Crushed stone and natural gravel are the common materials used as coarse aggregate for concrete. Coarse aggregate are obtained by crushing various types

  • U RECYCLE GLASS AS A COARSE AGGREGATE IN CONCRETE

    Using high proportion of aggregate in concrete lead to value addition for concrete, because it is inexpensive, economical and govern the engineering properties (Jayanandana and Jayasinghe, 1998). Most of the aggregates are obtained from the environment and numerous environmental problems and

  • How Coarse Aggregate Affects Mix Design of Concrete?

    🕑 Reading time: 1 minute Coarse aggregate is one of the essential components of concrete and occupies the largest volume in the mix. That is why it greatly affects the concrete mix design. Its properties such as strength, maximum size, shape, and water absorption influence water demand, the quantity of cement and fine aggregate in []

  • Aggregates: Physical Properties and Mechanical Properties

    Physical Prosperities of Aggregate : Grading Grading is the particle-size distribution of an aggregate as determined by a sieve analysis using wire mesh sieves with square openings. As per IS:2386(Part-1) Fine aggregate : 6 standard sieves with openings from 150 μm to 4.75 mm. (150 μm, 300 μm, 600 μm, 1.18mm, 2.36mm,

  • Aggregates for Use In Concrete

    Aggregates for Use In Concrete 2 Gravel Stone Coatings Roughness Bond to Mortar Freezing and Thawing Workability and Water Requirement Salts Properties Round Proportions Fine Coarse. 1/22/2014 4 7 Aggregates Important Properties Durability, Freeze - Thaw and Chemical Resistance


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