factors affecting curing of concrete

  • Effect Of Different Curing Methods On The Compressive

    Effect Of Different Curing Methods On The Compressive

    The study present the effect of different curing methods on the compressive strength of concrete using Portland cement and finally identifies the most effective curing process for normal concrete. MATERIALS AND METHODS Locally available crushed granite stones and fine aggregate (quartzite sand)were used as coarse and fine aggregate respectively.

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  • Bleeding of Concrete Causes Effect and Ways to Reduce it

    Bleeding of Concrete Causes Effect and Ways to Reduce it

    Aug 15 2017 · Number of problems can occur in concrete due to improper mixing curing and placing one such problem is "bleeding" in concrete. BLEEDING in concrete is a phenomenon in which free water in the mix rises up to the surface and forms a paste of cement on the surface known as "laitance" .

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  • 2 4 6 3 5 PART ONE FACTORS AFFECTING PROPER

    2 4 6 3 5 PART ONE FACTORS AFFECTING PROPER

    part one factors affecting proper concrete curing practices originally published in the summer 2014 american edge by terry swor pg and gerard moulzolf pgaet saint paul special series consider the cure a newsletter for clients and business partners of american engineering testing inc.

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  • Strength of Concrete Factors AffectingYouTube

    Strength of Concrete Factors AffectingYouTube

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    Mar 11 2014 · Strength of Concrete Factors Affecting nptelhrd. Loading Unsubscribe from nptelhrd Concrete Technology by Dr. B. Bhattacharjee Department of Civil Engineering IIT Delhi.For more details

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  • Cracks in Concrete -- the Causes and Cures Concrete

    Cracks in Concrete -- the Causes and Cures Concrete

    The mineral composition shape surface texture and grading of aggregate variously affect the required proportions thermal coefficient drying shrinkage stiffness creep and strength of concrete. Some admixtures may also affects cracking because of their effects on such contributory factors as rate of hardening shrinkage and creep.

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  • Sulphate attack in Concrete Its Effects Causes and

    Sulphate attack in Concrete Its Effects Causes and

    Jul 17 2016 · Contents Sources of Sulfates Internal sources External Sources Main factors affecting sulphate attack 1.Cement type and content 2. Fly ash addition 3. Sulphate concentration 4. Chloride ions Control of sulphate attack Solution of the sulfates of various bases including sodium potassium magnesium and calcium react

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  • WHAT ARE THE FACTORS INFLUENCING COMPRESSIVE

    WHAT ARE THE FACTORS INFLUENCING COMPRESSIVE

    Factors Affecting Strength Test Results of Concrete Compressive strength is the most important property of concrete. The compressive strength of concrete is determined in the laboratory in controlled conditions. On the basis of this test result we judge the quality of concrete. But sometimes the strength test results vary so widely that it becomes difficult

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  • Factors Affecting Durability of Concrete Surfaces

    Factors Affecting Durability of Concrete Surfaces

    Test results show that slump curing and time of finishing are the most important factors affecting the abrasion resis­ tance of concrete surfaces. Concrete receiving an application of a monomolecular film to retard evaporation during the fin­ ishing period showed an increase in abrasion resistance. A

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  • What is Concrete Strength and what are the factors

    What is Concrete Strength and what are the factors

    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. Accordingly cement alone is not a building material it is the concrete which is a building material.

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  • Curing of Concrete Curing time  Duration Methods of

    Curing of Concrete Curing time Duration Methods of

    Apr 04 2018 · Why curing of concrete is done -The reaction between cement and water is called hydration. Its an exothermic reaction (which releases heat). After adding water to the concrete mix hydration starts which makes concrete to dry out due to an exothermic reaction which releases heat.

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  • What is meant by Striking Formwork Removal of Formwork

    What is meant by Striking Formwork Removal of Formwork

    Aug 11 2016 · Factors Affecting Period of Striking of Formwork. Period elapsed before the removal of formwork depends on various factors and will be different job to job. Some of the important controlling factors that determine the time required before removal of shuttering are as follows . Type of Concrete

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  • Durability and Permeability of Concrete

    Durability and Permeability of Concrete

    Jan 05 2015 · Durability and Permeability of Concrete 130605 Unit-5 . Factors Affecting Permeability • Curing Continued hydration of the cement paste results in the reduction in the size of the voids which decreases the permeability. Proper curing of concrete decreases the permeability of concrete. • Permeability of steam cured concrete is generally

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  • Concrete CuringMethodsCuring of Concrete The

    Concrete CuringMethodsCuring of Concrete The

    Concrete CuringMethodsCuring of Concrete What is Curing It may be defined as the operation of keeping a freshly placed concrete moist during a specified period after its finishing to ensure complete hydration of cement particles or other cementing material for obtaining a properly hardened concrete.

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  • What are the factors affecting the durability of concrete

    What are the factors affecting the durability of concrete

    May 12 2018 · The strength of concrete is affected by various factors including its ingredients environmental factors post-processes or works and so on. 1. Increasing aggregate size increases the strength of the concrete however the affect is insignificant

    What factors affect concrete strength Jun 21 2019What is Concrete Shrinkage and what are the factors Jan 16 2019What are the factors affecting fibre-reinforced concrete Mar 19 2017What factors affect the shrinkage and creep of concrete See more results Get Price
  • Workability of ConcreteTests  Factors Affecting

    Workability of ConcreteTests Factors Affecting

    Apr 30 2016 · Factors affecting workability. Workable concrete shows very less internal friction between particles and overcomes the frictional resistance with just the amount of compacting efforts provided. Workability of the concrete depends on a number of interrelating factors. Water content aggregate properties use of admixtures fineness of cement are

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  • What factors affect the shrinkage and creep of concrete

    What factors affect the shrinkage and creep of concrete

    CREEP OF CONCRETE Creep can be defined as the elastic and long-term deformation of concrete under a continuous load. Generally a long term pressure changes the shape of concrete structure and the deformation occurs along the direction of the app

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  • What are Properties of Hardened ConcreteGoverning Factors

    What are Properties of Hardened ConcreteGoverning Factors

    Sep 16 2013 · Compressive Strength Compressive strength of concrete is usually defined as characteristic compressive strength (fcu / fck).Which is obtained by cube test or cylinder test of concrete specimen after 28 days of curing. Compressive strength of concrete varies from 10N/mm2 to 500N/mm2 for ultra high strength concrete (2000-8000 psi).

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  • Effect Of Different Curing Methods On The Compressive

    Effect Of Different Curing Methods On The Compressive

    The study present the effect of different curing methods on the compressive strength of concrete using Portland cement and finally identifies the most effective curing process for normal concrete. MATERIALS AND METHODS Locally available crushed granite stones and fine aggregate (quartzite sand)were used as coarse and fine aggregate respectively.

    Get Price
  • A study of factors affecting the flexural tensile strength

    A study of factors affecting the flexural tensile strength

    The researchers have also devoted their work to study the factors causing variability in flexural tensile strength of concrete. The effect of curing of concrete member on flexural tensile strength cured under standard testing conditions and cured under site conditions is studied by Légeron and Paultre (2000). They found significant

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  • Temperature Effect On Concrete Workability Effect On

    Temperature Effect On Concrete Workability Effect On

    Apr 10 2012 · When fresh concrete is laid at the site then proper curing of concrete is required because structures are exposed to the environment and in these conditions if there is no such an arrangement against the environment then there are many factors that affect the workability of concrete and temperature is One of them.

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  • What is Concrete Strength and what are the factors

    What is Concrete Strength and what are the factors

    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. Accordingly cement alone is not a building material it is the concrete which is a building material.

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  • How Long Does Concrete Take To Set Concrete Cure TImes

    How Long Does Concrete Take To Set Concrete Cure TImes

    May 26 2019 · Factors Affecting Concrete Setting Time. Moisture plays a critical role in curing time for concrete. If there is not sufficient water in the mix the concrete will cure too fast resulting in weaker overall strength. Too much moisture often used in the finishing step

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  • Curing of Concrete

    Curing of Concrete

    Liquid Membrane-forming Curing Compounds for Concrete. They are an efficient and cost-effective means of curing concrete and may be applied to freshly placed concrete or that which has been partially cured by some other means. However they may affect the bond between concrete and subsequent surface treatments. Special care in the choice of a

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  • Rheology of Concrete- Factors Affecting Rheological

    Rheology of Concrete- Factors Affecting Rheological

    The factors affecting the rheological properties of the concrete are explained below 1. Mix Proportion of Concrete Affecting the Rheology 2. Consistency of Concrete Affecting the Rheology 3. The hardening and Stiffening of Concrete Affecting the Rheology 4. Shape and Texture of Aggregate affecting the Rheology 5.

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  • CuringMain

    CuringMain

    Curing can therefore be achieved either through maintaining mixing water in the concrete during early hardening or by preventing moisture loss from the surface by sealing. The ultimate choice of the particular method to use will take into consideration factors such as economy esthetics member shape etc.

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  • Studies on some factors affecting CO2 curing of

    Studies on some factors affecting CO2 curing of

    This paper deals with the effects of several factors such as CO 2 pressure curing time water-to-cement ratio and continued curing after CO 2 curing on temperature profiles CO 2 curing degree and strength of concrete. Results indicated that the accelerated reactions between CO 2 and cement minerals happen mainly during the first 15 min regardless of CO 2 pressure and pre-conditioning

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  • What factors affect the shrinkage and creep of concrete

    What factors affect the shrinkage and creep of concrete

    CREEP OF CONCRETE Creep can be defined as the elastic and long-term deformation of concrete under a continuous load. Generally a long term pressure changes the shape of concrete structure and the deformation occurs along the direction of the app

    Get Price
  • Effect Of Different Curing Methods On The Compressive

    Effect Of Different Curing Methods On The Compressive

    The study present the effect of different curing methods on the compressive strength of concrete using Portland cement and finally identifies the most effective curing process for normal concrete. MATERIALS AND METHODS Locally available crushed granite stones and fine aggregate (quartzite sand)were used as coarse and fine aggregate respectively.

    Get Price
  • 20 Factors Affecting Durability of ConcreteStructural Guide

    20 Factors Affecting Durability of ConcreteStructural Guide

    The life span of structures is affecting durability of concrete. There are other factors such as concrete class water-cement ratio etc that need to consider when defining the durability. The structural classes clearly specify the durability periods of each type of structure. Factors affecting durability of concrete listed below. High humidity

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  • Factors Affecting the Curing and Strength of Polymer Concrete

    Factors Affecting the Curing and Strength of Polymer Concrete

    The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills Michigan USA the American Concrete Institute is a leading authority and resource worldwide for the development dissemination and adoption of its consensus-based standards technical resources educational programs and proven expertise for individuals and organizations involved in concrete design

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  • Cracks in Concrete -- the Causes and Cures Concrete

    Cracks in Concrete -- the Causes and Cures Concrete

    The mineral composition shape surface texture and grading of aggregate variously affect the required proportions thermal coefficient drying shrinkage stiffness creep and strength of concrete. Some admixtures may also affects cracking because of their effects on such contributory factors as rate of hardening shrinkage and creep.

    Get Price
  • Factors affecting kinetics of CO 2 curing of concrete

    Factors affecting kinetics of CO 2 curing of concrete

    In this study a model was proposed to describe the CO2 curing of concrete. Then it examined the effects of several factors including preconditioning parameters compaction pressure CO2

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  • Curing of Concrete Curing time  Duration Methods of

    Curing of Concrete Curing time Duration Methods of

    Apr 04 2018 · Why curing of concrete is done -The reaction between cement and water is called hydration. Its an exothermic reaction (which releases heat). After adding water to the concrete mix hydration starts which makes concrete to dry out due to an exothermic reaction which releases heat.

    Get Price
  • Top 15 Factors Affecting Strength of Concrete

    Top 15 Factors Affecting Strength of Concrete

    Ratio of Cement to the Mixing Water. For concrete that has to be compacted by a vibrator a lower Get Price
  • Studies on some factors affecting CO2 curing of

    Studies on some factors affecting CO2 curing of

    Studies on some factors affecting CO2 curing of lightweight concrete products Article in Resources Conservation and Recycling 52(8) 1087-1092 · July 2008 with 29 Reads How we measure reads

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  • 15 Factors Affecting Durability of Concrete

    15 Factors Affecting Durability of Concrete

    Various factors affecting the concrete durability are discussed below. Factors Affecting Durability of Concrete Following are the factors affecting durability of concrete. Cement Content Aggregate Quality Water Quality Concrete Compaction Curing Period

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