10-04-2019· Ppt concrete aggregates powerpoint. The properties of concrete are affected by the properties of aggregate the mineral character of aggregate affects the strength, durability, elasticity of concrete. the surface characteristics of aggregate affects the workability of fresh mass the bond between the aggregate cement paste in hardened concrete. if it is rough, workability decreas.
Properties of Pumice Lightweight Aggregate. Properties of Pumice Lightweight Aggregate *Mang,uriu Geoffrey N. 1 Mutku Raphael.N. 1, Oyawa Walter.O. 1 Abuodha Silvester.O. 2 1 Department of Civil, Construction and Environmental Engineering Jomo Kenyatta University of Agriculture and Technology, 2 Department of Civil Engineering University of Nairobi *email- [email protected] Abstract The use of ...
2016-10-1 Engineering Properties of Aggregates. Aggregates are used in concrete to provide economy in the cost of concrete. Aggregates act as filler only. These do not react with cement and water. But there are properties or characteristics of aggregate which influence the properties of resulting concrete mix. These are as follow.
Aggregate is granular material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approximately 60 to 75% of the volume of concrete. Aggregate properties significantly affect the workability of plastic concrete and also the durability, strength, thermal properties,
View and Download PowerPoint Presentations on PROPERTIES OF AGGREGATES PPT. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations about PROPERTIES OF AGGREGATES PPT.
Introduction • Aggregate is an inert, inexpensive, mostly inorganic and granular material dispersed throughout the cement paste so as to produce a large volume of concrete • Aggregates occupy approximately three-quarters of the volume of concrete • The physical, thermal and sometimes, chemical properties of aggregates influence the performance of concrete by improving its volume.
Physical Properties of Aggregates What is an AGGREGATE Aggregate: the inert filler materials, such as sand or stone, used in making concrete Physical Properties of Aggregates: 1.Unit Weight and Voids 2. Specific Gravity 3. Particle Shape and Surface Texture 4. Shrinkage of Aggregates 5. Absorption and Surface Moisture 6. Resistance to Freezing ...
01-10-2016· Aggregates are used in concrete to provide economy in the cost of concrete. Aggregates act as filler only. These do not react with cement and water. But there are properties or characteristics of aggregate which influence the properties of resulting concrete …
Physical Properties of Aggregate: Flakiness Index The flakiness index of aggregate is the percentage by weight of particles in it whose least dimension (thickness) is less than three-fifths of their mean dimension. The test is not applicable to sizes smaller than 6.3 mm. The flakiness index is taken as the total weight of the
Physical Properties of Aggregates Aggregate Properties.ppt (Size: 2.23 / Downloads: 235) What is an AGGREGATE Aggregate: the inert filler materials, such as sand or stone, used in making concrete Physical Properties of Aggregates: 1.Unit Weight and Voids 2. Specific Gravity 3. Particle Shape and Surface Texture 4. Shrinkage of Aggregates 5.
Deleterious constituents. Unit weight. Compacted. Loose ... Deleterious Aggregates. Chemical Properties. Solubility. Electrical conductivity. Asphalt affinity ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: f39eb-ZDc1Z
aggregates Description: ... scoria, perlite, can be sawed or nailed, also used for its insulating properties (250 to 1450 kg/m3). lightweight expanded clay, shale or slate, ...
13-09-2014· Engineering materials notes for the topic properties of aggregriate
When we estimate the concrete quantity, the aggregates will occupy 70 to 75% of the volume.. The classification of aggregates depends on the grain size, density, shape, and geographical origin. So the properties of aggregates will differ based on the classification, and it may influence the mix of the concrete and strength.
Mar 16 2017 0183 32 What is Concrete and what are the Properties of Concrete Concrete is a mixture of portland cement water aggregates and in some cases admixtur The cement and water form a paste that hardens and bonds the aggregates together Concrete is …
Aggregates: Physical Properties and Mechanical Properties. Aggregates generally occupy 65- 80% of a concrete's volume. Aggregates are inert fillers floating in the cement paste matrix for concretes of low strength. The strength of aggregates do not contribute to …
Ppt On Properties Of Recycled Aggregates In Concrete. Jul 03, 2013 · on the properties of concrete with recycled aggregates, Found 4 files for recycled aggregate concrete performance ppt.Review these results or try to 4.7/5(3.9K) Study on the influence of attached mortar content on the
28-12-2015· Properties of aggregates Introduction Strength of aggregate Particle shape and texture Grading Moisture content Classification of aggregate Aggregates Aggregates commonly…
03-01-2021· PPT Aggregates in Civil Engineering PowerPoint. Aggregate Properties. Voids Dry-Rodded Unit Weight, DRUW ; DRUW the weight of oven dry compacted aggregate that occupies a unit volume, kg/m3 or lb/ft3; 32 Voids Analysis. Interparticle voids can …
PROPERTIES OF RECYCLED AGGREGATE CONCRETEphysical mechanical properties of concrete, therefo re, even though through a careful mix design and application of appropriate production technology these effects can be reduced to an acceptable level,, Mirjana Malešev, et al, Properties of recycled aggregate concrete.3 Aggregate Properties3) General field characteristics of these aggregates ...
All aggregates must be essentially free of silt (size 60 - 2 m) and/or organic matter Aggregates Coarse aggregates >5 mm Fine aggregates . 5 mm The physical and mineralogical properties of aggregates must be known before mixing concrete to obtain a desirable mixture Fine aggregate Natural sand, crushed stone dust or manufactured sand by.
Physical Properties of Aggregate: Bulk Density The cylindrical measure is filled about 1/3 each time with thoroughly mixed aggregate and tamped with 25 strokes by a bullet ended tamping rod, 16 mm diameter and 60 cm long. The net weight of the aggregate in the measure is determined and the bulk density is calculated in kg/litre.
19-03-2016· Aggregate Properties (Tests) 1. Size Classification 2. Shape Classification 3. Hardness (Los Angeles Test) 4. Moisture Content 5. Bulking of sand 24. 1 Size Classification 25. Aggregate: Sieves 26. Granulometry is the measurement of the size distribution in a collection of grains 27.
28-04-2013· The finenessmodulus of an aggregate is roughlyproportional to the average size of particlesof the aggregates. 28. 29(OR)Index Number expressing the relativesizes of both coarse and fine aggregatesis called "Fineness Modulus".Sand Fineness …