effect of cement content on concrete performance

"Effect of Cement Content on Concrete Performance" by ...

Dec 17, 2018  Of all the traditional concrete materials, portland cement has the greatest impact on mixture cost and the environment. Cement is in many ways the glue holding concrete together (Weiss, 1999), and as such, it plays a major role in fresh and hardened concrete properties. Without the proper range of cement in the mixture, low strength development or excessive shrinkage may occur leading

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Effect of Cement Content on Concrete Performance.pdf ...

Effect of Cement Content on Concrete Performance A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering by Caleb LeBow University of Arkansas Bachelor of Science in Civil Engineering, 2017 December 2018 University of Arkansas This thesis is approved for recommendation to the Graduate Council.

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Optimizing concrete mixtures with minimum cement content ...

0.35, cement content of more than 500 pcy adversely affects the concrete performance by decreasing strength (increasing cement content from 500 pcy to 700 pcy approximately reduced the 28-day compressive strength by 15%) and may cause shrinkage related cracking

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Optimizing concrete mixtures with minimum cement content ...

0.35, cement content of more than 500 pcy adversely affects the concrete performance by decreasing strength (increasing cement content from 500 pcy to 700 pcy approximately reduced the 28-day compressive strength by 15%) and may cause shrinkage related cracking

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THE EFFECTS OF CEMENT VARIATIONS ON CONCRETE

The Effects of Cement Variations on Concrete Workability Klaus Juvas Lich.Tech., Laboratory Manager Addtek Research Development Oy Ab, P.O.Box 23, FIN-21601 Parainen, Finland E-mail: [email protected] Aulis Käppi Civ.Eng., Project Manager Addtek Research Development Oy Ab, P.O.Box 23 FIN-21601 Parainen, Finland

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Effect of Cement Replacement, Content, and Type on the ...

This investigation presents data on the strength, general quality, and durability performance of fly-ash portland-cement concrete against sulfate/chloride attack. The variables used for this study are fly ash additions as cement replacement from 0 to 40%, cement factors of 300, 360 and 450 kg/m 3 (500, 600, and 750 lb/yd 3 ) and tricalcium ...

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Optimizing Cementitious Content in Concrete Mixtures for ...

Effect of cement content on concrete compressive strength The scope of this study is to investigate strength, chloride penetration, and air permeability as indicators of performance of concrete mixtures with various w/cm and cementitious contents using a variety of binders. Fresh concrete properties such as slump, setting time, and air content

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Effect of alkali content of cement on properties of high ...

Jan 15, 2016  When alkali content of cement increases, or total alkali content of concrete increases, the potential for ASR in concrete increases , , . A study on the ASR induced expansion of concrete with alkali content of cement varying from 0.9% to 1.25% Na 2 O eq was conducted by Rogers et al. .

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EFFECT OF CEMENT REPLACEMENT, CONTENT, AND TYPE ON

EFFECT OF CEMENT REPLACEMENT, CONTENT, AND TYPE ON THE DURABILITY PERFORMANCE OF FLY ASH CONCRETE IN THE MIDDLE EAST. The low durability of concrete construction in the Middle East caused by corrosion of reinforcement, sulfate attack, environmental cracking, and aggregate-cement reactivity necessitates that mix design techniques be formulated to yield dense and impervious concrete

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THE EFFECT OF CONCRETE COMPOSITION AND

Feb 24, 2009  R. Mačiulaitis et al. The effect of concrete composition and aggregates properties on performance of concrete 318 (the crushed 0.5–2 mm size glass and 2–16 mm fraction gravel was utilised; 0.5–2 mm size expanded clay and 2– 16 mm size gravel). The lowest values of the compressive strength were achieved only when the crushed 2–16 mm

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Effect of Cement Type on the Resistance of Concrete ...

reaction of the fly ash is slow and its effect on improving the concrete properties can be limited. In order to obtain the performance of the concrete containing the fly ash equivalent to that of the pure portland cement concrete, 10% of the portland cement was replaced by 25% fly ash by weight.

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Effect of Fineness of Cement on Concrete Properties ...

Jan 06, 2018  In air-entrained concrete the effect of fineness of cement on workability is very much less pronounced. Increased Modulus of Elasticity The 28-day compressive strength modulus of elasticity of concrete, with or without entrained air, increases with an increase in cement fineness.

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Effects of Substances on Concrete and Guide to ... - Cement

Cement content—at least 335 kg/m3 (564 lb/yd3) of cemen titious material should be used for concrete exposed to severe freeze-thaw, deicer, and sulfate environments. Suitable cement type—cement should be suited to the exposure, such as sulfate-resistant cement to help prevent sulfate attack (Table 1).

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Investigation of effects of Portland cement fineness and ...

8 levels of cement fineness (275, 337 and 385 m2/kg) and three levels of cement alkali content (0.4, 0.8 9 and 1.2 % by mass) considered. The approach used was to hold the cement content constant at 420 10 kg/m3 and adjust the water content to achieve the require W/C. In terms of workability, all concrete

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Effect of chloride content on mechanical properties of ...

Nov 01, 2017  Experimental results on the effects of chloride content of ultra high performance concrete (UHPC) are presented. The experimental variables are the amount of sodium chloride, ranging from zero to 3.0% per cement weight, and matrix strength, including normal mortar and

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Factors Affecting Strength of Concrete - The Constructor

Assuming an increase in cement content for no increase in water demand, the water cement ratio will decrease. If the water cement ratio reduces, the strength of the concrete will increase. The influence of cement content on workability and strength is an important one to

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The Effects of Aggregates Characteristics on the ...

PERFORMANCE OF PORTLAND CEMENT CONCRETE by Pedro Nel Quiroga and David W. Fowler The University of Texas at Austin Austin, Texas Report ICAR 104-1F Project Number 104 Research Project Title: The Effects of Aggregate Characteristics on the Performance of Portland Cement Concrete Sponsored by the International Center for Aggregates Research

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THE EFFECTS OF CEMENT VARIATIONS ON CONCRETE

The Effects of Cement Variations on Concrete Workability Klaus Juvas Lich.Tech., Laboratory Manager Addtek Research Development Oy Ab, P.O.Box 23, FIN-21601 Parainen, Finland E-mail: [email protected] Aulis Käppi Civ.Eng., Project Manager Addtek Research Development Oy Ab, P.O.Box 23 FIN-21601 Parainen, Finland

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Reducing Cement Content in Concrete Mixtures

The goal of this project was to evaluate the effects of reducing the cementitious material content in concrete mixtures, or CMC, measured in pounds per cubic yard of concrete, or lbs/yd 3 . Specifically, researchers set out to compare the strength and durability of mixtures with the standard

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Effect of Cement Replacement, Content, and Type on the ...

This investigation presents data on the strength, general quality, and durability performance of fly-ash portland-cement concrete against sulfate/chloride attack. The variables used for this study are fly ash additions as cement replacement from 0 to 40%, cement factors of 300, 360 and 450 kg/m 3 (500, 600, and 750 lb/yd 3 ) and tricalcium ...

get price

EFFECT OF CEMENT REPLACEMENT, CONTENT, AND TYPE ON

EFFECT OF CEMENT REPLACEMENT, CONTENT, AND TYPE ON THE DURABILITY PERFORMANCE OF FLY ASH CONCRETE IN THE MIDDLE EAST. The low durability of concrete construction in the Middle East caused by corrosion of reinforcement, sulfate attack, environmental cracking, and aggregate-cement reactivity necessitates that mix design techniques be formulated to yield dense and impervious concrete

get price

Effects of Substances on Concrete and Guide to ... - Cement

Cement content—at least 335 kg/m3 (564 lb/yd3) of cemen titious material should be used for concrete exposed to severe freeze-thaw, deicer, and sulfate environments. Suitable cement type—cement should be suited to the exposure, such as sulfate-resistant cement to help prevent sulfate attack (Table 1).

get price

Effect of Cement Type on the Resistance of Concrete ...

reaction of the fly ash is slow and its effect on improving the concrete properties can be limited. In order to obtain the performance of the concrete containing the fly ash equivalent to that of the pure portland cement concrete, 10% of the portland cement was replaced by 25% fly ash by weight.

get price

Effect of Fineness of Cement on Concrete Properties ...

Jan 06, 2018  In air-entrained concrete the effect of fineness of cement on workability is very much less pronounced. Increased Modulus of Elasticity The 28-day compressive strength modulus of elasticity of concrete, with or without entrained air, increases with an increase in cement fineness.

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Effect of paste-to-voids volume ratio on the performance ...

decrease the durability of concrete. In addition, increasing cement content also has a negative impact on environment due to the high energy consumption and CO. the 2. emission of cement production (Liu et al. 2012Wassermann; et al. 2009). It is likely possible to reduce this amount

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Ettringite Formation and the Performance of Concrete -

Feb 28, 2000  Portland Cement Association Fig. 2. Ettringite (white, needle-like crystals) are commonly found in samples taken from concrete in service, especially in concrete from moist environments. Secondary ettringite is not detrimental to concrete performance. [Concrete in photo exposed to phenolphthalein stain to highlight features.] Fig. 3.

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Effect of Improper Curing on Concrete Performance

1 34th Cement and Concrete Science Conference Paper Number 162 14-17 September 2014 University of Sheffield Effect of Improper Curing on Concrete Performance Olusola Idowu and Leon Black Institute for Resilient Infrastructure, School of Civil Engineering, University of Leeds, Leeds.

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Factors Affecting Strength of Concrete - The Constructor

Assuming an increase in cement content for no increase in water demand, the water cement ratio will decrease. If the water cement ratio reduces, the strength of the concrete will increase. The influence of cement content on workability and strength is an important one to

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Reducing Clinker Content and Carbon Footprint of Concrete ...

carbon footprint of concrete 1. Reduce the clinker content of the cementitious binder 2. Reduce the total binder content of concrete mixtures. For the first, combinations of supplementary cementitious materials can be combined with Type IL cements while still attaining early-age strength development with at least a 40% reduction in clinker content.

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Effects of w/b Ratio and Binder Content on Mechanical and ...

investigated the effects of cement content on compressive strength and durability properties of concrete in water to cement (w/c) ratios in the range of 0.45-0.70. They revealed that compressive strength is a function of w/c ratio and independent of cement content. Based on their results capillary absorption and chloride ingress reduce

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EFFECT OF SULFUR TRIOXIDE CONTENT ON CONCRETE

EFFECT OF SULFUR TRIOXIDE CONTENT ON CONCRETE STRUCTURES USING FLORIDA MATERIALS. In this study, several ASTM portland cements were used to address effects of increasing sulfur trioxide (SO3) content of cement on the performance and durability of concrete. The cements were analyzed for their mineralogical content using x-ray diffraction.

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