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factors affecting density of concrete – we civil engineers

Tag factors affecting density of concrete Concrete technology Strength of concrete 24 Mar 2018 23 Mar 2018 The strength of concrete is basically referred to compressive strength and it depends upon three factors i- Paste Strength ii- Interfacial Bonding iii- Aggregate Strength i Get price

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The Strength of Chapter Concrete 3

3 9 Testing of Hardened Concrete FACTORS AFFECTING STRENGTH 3 10 General Comments 3 11 Causes of Strength Variations –Cement – Aggregates – Mix Proportioning – Making and Handling the Concrete – Temperature and Curing 3 12 Apparent Low Strength 3 13 Accelerated Strength Development – High-Early-Strength Cement –AdmixturesGet price

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Chapter Six Strength of Concrete

Moreover the strength of concrete is almost invariably a vital element of structural design and is specified for compliance purposes Strength of concrete could be defined as the ultimate load that causes failure (or is its resistance to rupture) and its units are force units divided by area (N/mm2 lb/in2) Nature of strength of concrete Get price

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Water–cement ratio

However a mix with a ratio of 0 35 may not mix thoroughly and may not flow well enough to be placed More water is therefore used than is technically necessary to react with cement Water–cement ratios of 0 45 to 0 60 are more typically used For higher-strength concrete lower ratios are used along with a plasticizer to increase flowability Get price

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Factors Affecting Concrete Mix Design

Factors Affecting Concrete Mix Design Jump to Sections of this page Accessibility Help Press alt + / to open this menu Facebook Email or Phone Password Forgot account? Sign Up See more of Civil Engineering Knowledge on Facebook Log In or Create New Account See more of Civil Engineering Knowledge on Facebook Log In Get price

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A study of factors affecting the flexural tensile strength

been paid to study the parameters affecting the flexural tensile strength of concrete The effect of the factors like age and con-finement of concrete on flexural strength has not been investi-gated properly and proper inter-dependency of various factors that affect the flexural strength Get price

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2 Five Ways Aggregate Can Affect The Strength Of

5-7-2018The other properties affecting the strength of the concrete are specific gravity soundness and so on In conclusion Size Contents Shape and Texture Size Distribution and Moisture content of aggregate are the main factors that affect the strength of the concrete mix Get price

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What are factors affecting strength of soil cement mixes

What are factors affecting strength of soil cement mixes? factors affecting strength of soil cement mixes are 1-cement content 2-moisture content What are the factors affecting the design of concrete mix? a) fineness modulus b) w/c ratio c) slump d) all the above Get price

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Optimizing Paving Concrete Mixtures and Accelerated

High-Strength Concrete l Suitable mix proportion for high-strength concrete was examined in liggyht of workability in pavement construction l Mini-finisher tests were conducted with high-strength concretes with various mix proportions l Unit water content was set at 115 to 125 kg/m3 l Concrete Get price

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factors affecting strength of concrete – we civil engineers

Tag factors affecting strength of concrete Concrete technology Workability of Concrete Factors affecting workability 23 Mar 2018 23 Mar 2018 Workability is often referred to as the ease with which a concrete can be transported placed and consolidated without excessive bleeding or segregation Get price

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Water in Concrete

24-4-2014Water content is the single most important factor affecting workability or the ease of mixing and placing concrete concrete compressive strength increases as w/cm ratio decreases for both non-air-entrained and air-entrained concrete Other important factors that affect workability include mix proportions Get price

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STRENGTH

Compressive strength and factors affecting it From the standpoint of strength the water-cement ratio -porosity relationis undoubtedly the most important factor however direct determination is not practical And very complex To simplify an understanding of these factors they are Get price

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FACTORS AFFECTING THE WORKABILITY OF CONCRETE

The objective of the research is mainly to check the factors affecting workability of concrete incorporating PFA This objective then can be divided into more small objectives by dividing it into the experiment that will be done which are To investigate the paste consistency of cement plus PFA Get price

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11 Factors that can Affect the Strength of Concrete

20-11-201811 Factors that can Affect the Strength of Concrete Concrete is widely used building material in the construction world Concrete is made up of various ingredients and of course all of them have different role The properties of concrete generally rely on the mixing of concrete Get price

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Factors affecting the strength of

Concrete compressive strength decreases significantly with decreasing density and therefore Factors affecting the strength of structural lightweight aggregate concrete with and without fibers in the 1 200–1 600 kg/m 3 density range mixes with flexural strengths of up to 7 MPa and high ductility in flexure are obtained at 28 days Get price

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FACTORS AFFECTING COMPRESSIVE STRENGTH OF

FACTORS AFFECTING COMPRESSIVE STRENGTH OF GEOPOLYMER CONCRETE-A REVIEW Ajay Sharma1 Juned Ahmad2 1 PG Student Structural Engineering constituents as well as various factors that can affect the compressive strength of geopolymer concrete After the mixing is done the mix is filled in the moulds inGet price

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Factors affecting compressive strength (in Hindi)

Mix design of concrete Numerical (in hindi) 9 03 48 Mix design of concrete Numerical 2 2 14 49 Physical properties of concrete witn stress-strain curve of conc 11 42 50 Creep in concrete 11 14 51 Factors affecting compressive strength (in Hindi) 0 887 plays / More Praveen Kumar Get price

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principles of concrete mix design ppt

Factors affecting Strength The strength of hardened concrete depends on many factors the main ones being W/C Ratio Strength of the Cement Type and shape of Aggregate Entrained Air Content 40 There are other secondary factors too such as Mix temperature etc Get price

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Hardened Concrete

Hardened Concrete Lecture No 15 Factors affecting strength of concrete As a result in a leaner mix the voids form a smaller fraction off the total volume of concrete and it is these voids that have an adverse effect on strength Influence of aggregate/cement ratio Get price

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Factor Affecting the Relation Between Tensile and

The relation between the flexure strength and compressive strength depends on the type of coarse aggregate used except in high strength concrete because the properties of aggregate especially its shape and surface texture affect the ultimate strength in compression very much less than the strength in tension or cracking load in compression Get price

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FACTORS AFFECTING STRENGTH OF CONCRETE

FACTORS AFFECTING STRENGTH OF CONCRETE Concrete strength is effected by many factors such as quality of raw materials water/cement ratio coarse/fine aggregate ratio age of concrete compaction of concrete temperature relative humidity and curing of concrete Get price

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Factors Affecting The Strength of Concrete

Image Source Concrete is a complex material which is composed of several ingredients Aggregates Cement Water Admixtures The strength of it is affected by the quality quantity and contents of the ingredients but along with these the strength of the concrete mix is also affected by the environmental factors such as moisture post Get price

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The Importance of the Factors Affecting Concrete Shrinkage

The Importance of the Factors Affecting Concrete Shrinkage 1 Purpose This paper summarises the research on the causes creating shrinkage strains in concrete and thus the likelihood of shrinkage cracking illustrates the conflicting requirements in the selection of concrete properties and attributes and provides information on the relevanceGet price

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What are Properties of Hardened Concrete

Tags Consequences of creep Corrosion Protection Durability Durability-Cracking Factors Affecting Concrete Strength Factors Affecting Strength Hardened Concrete Properties Resistance to freezing and thawing-Major factors Strength and CuringGet price

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Factors Affecting the Setting Time of Fly Ash

The pH value measured in fly ash according previous research can influence the setting time of geopolymer and fly ash with high pH values can cause flash-setting in the concrete Understanding more clearly about the factors that affect the setting time of fly ash based geopolymer is important for further progress and development of the material Get price

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What Is Workability of Concrete

The addition of superplasticizer improves the wetting out and mix-ability of the concrete mix It reduces yield stress which means less mixing energy and time are required It improves the homogeneity of the various mineral additives and admixture Also read Soundness of Cement Test Factors Affecting Get price

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Concrete Shrinkage Definition Factors and Damage

In general for a concrete mixture with water-to-cement ratio greater than 0 42 the early age shrinkage is primarily due to the chemical hydration reactions while the long term shrinkage is attributed to water exchange and evaporation Factors Affecting Shrinkage StrainGet price

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Factors Affecting Durability of Concrete

Factors Affecting Durability of Concrete (English) Shear Strength of High-Strength Concrete Beams Without Shear Reinforcement Influence of Chloride Content Cover and Concrete Mix Parameters on Post Depassivation Service Life of Chloride-Contaminated R C Structures Get price

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What is Concrete Strength and what are the factors

What is Concrete Strength and what are the factors affecting it? By Er Kaushal Kishore Materials Engineer Roorkee Concrete Strength Cement like water aggregates and some times admixtures is one of the ingredient of concrete The mixing of these materials in specified proportions produces concrete Get price

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factors affecting concrete strength up on test

factors affecting concrete strength up on test HIGH EARLY STRENGTH CONCRETE OVERLAYS- factors affecting concrete strength up on test o Determine the affect that different situations have on maturity o 4 x 8 inch cylinders vibrator head should be rapidly plunged into the mix Get price

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Creep Of Concrete

Factors Affecting Creep Of Concrete The factors that affect creep of concrete are similar to the factors affecting shrinkage which are as following 1 Water-cement Ratio The rate of creep is increased with increasing water cement ratio 2 Humidity It is influenced by humidity and drying condition of the atmosphere Get price

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FACTORS AFFECTING CONCRETE MIX DESIGN STRENGTH

FACTORS AFFECTING CONCRETE MIX DESIGN STRENGTH Factors that affects the concrete mix design strengths are Variables in Mix Design A Water/cement ratio B Cement content C Relative proportion of fine coarse aggregates D Use of admixtures A Water/cement ratio Water to cement ratio (W/C ratio) is the single most important factorGet price

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INTERNATIONAL JOURNAL OF CIVIL ENGINEERING AND

FACTORS AFFECTING THE STRENGTH OF REACTIVE POWDER CONCRETE (RPC) was achieved with the mix considered It is observed from the study that w/b ratio silica fume content International Journal of Civil Engineering and Technology (IJCIET) ISSN 0976 – 6308Get price

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