Influence of Mixing Time on Fresh and Hardened Concrete
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Influence of Mixing Time on Fresh and Hardened Concrete .

Influence of Mixing Time on Fresh and Hardened

2015-11-1  Title: Influence of Mixing Time on Fresh and Hardened Concrete Characteristics. Author (s): David Trejo and Jiaming Chen. Publication: Materials Journal. Volume: 112. Issue: 6. Appears on pages (s): 745-753. Keywords: compressive strength; diffusivity; extended mixing; freezing and thawing; mixing time; modulus of elasticity; modulus of rupture;

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Influence of Mixing Time on Fresh and Hardened

Results from this research indicate that extended mixing times (longer than current specification) have no detrimental effects on the mechanical properties and durability characteristics of concrete as long as the concrete exhibits adequate workability to be properly cast.

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Influence of mixing time on fresh and hardened cast-in ...

2019-11-26  4 Influence of mixing time on fresh and hardened 5 cast-in-place concrete 6 7 . 8 ABSTRACT 9 An adequate mixing time in concrete casting allows to achieve a homogeneous mass and improve compressive strength and durability. However, the lack of standards for cast-in-place concrete causes that the builders use different mixing times according to the locality

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Influence of Mixing Time on Fresh and Hardened Cast

An adequate mixing time in concrete casting allows to achieve a homogeneous mass and improve compressive strength and durability. However, the lack of standards for cast-in-place concrete causes that the builders use different mixing times according to the locality usages and customs, which results in a high variability of the expected quality.

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Influence of Mixing on the Fresh and Hardened Concrete ...

2016-1-5  mixer is higher and the mixing time shorter. The amount of mixing energy input is equiv-alent to the area under the respective power curve and was determined by numerical integration in both cases as pre-cisely 0.516 kW/H. The mixing parameters are illustrated in Table 2 below. Results Fresh concrete properties The sequence of the fresh ...

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Influence of mixing protocol on fresh and hardened ...

2015-11-15  Mixing time and mixing sequence is kept constant for all the mixers. It is noticed that the type of mixer highly influences both the fresh and hardened properties. The fresh and hardened properties of SCC obtained from various mixers are presented in Table 6, Table 7 respectively.

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INFLUENCE OF MIXING AND CURING TEMPERATURES

INFLUENCE OF MIXING AND CURING TEMPERATURES ON THE PROPERTIES OF FRESH AND HARDENED SELF-CONSOLIDATED CONCRETE IN HOT WEATHER CONDITIONS Vinh An LE 1,2*, Franck Cassagnabere 1, Michel Mouret1 1 Université de Toulouse, UPS, INSA, LMDC, FRANCE. 2 University of Communication and Transport, Ha Noi, VIETNAM.

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Influence of mixing protocol on fresh and hardened ...

Time of addition of superplasticizer does not contribute for the variation in hardened properties. Abstract Mixing procedure as well as type of mixing highly influence the fresh and hardened properties of self-compacting concrete (SCC) besides other parameters such as mix proportions, water to powder ratio, and mineral and chemical admixtures.

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Influence of mixing method, speed and duration on

2017-6-15  Johanson varied mixing time and measured the homogeneity of concrete by fresh and hardened properties. The results of the study indicated that a longer mixing time increases the homogeneity of concrete up to a point. After that the homogeneity of concrete depends strongly on the type of mixer and constituents of the mix.

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Influence of mixing time and superplasticizer dosage

2020-5-1  Thus, the time and method of mixing materials must be monitored because these factors affect the properties of fresh and hardened concrete. Therefore, mixing time significantly affects the rate of workability loss.

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Influence of Mixing on the Fresh and Hardened Concrete ...

2016-1-5  mixer is higher and the mixing time shorter. The amount of mixing energy input is equiv-alent to the area under the respective power curve and was determined by numerical integration in both cases as pre-cisely 0.516 kW/H. The mixing parameters are illustrated in Table 2 below. Results Fresh concrete properties The sequence of the fresh ...

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View of Influence of Mixing Time on Fresh and

Influence of Mixing Time on Fresh and Hardened Cast-in-place Concrete Download-PDF ... Influence of Mixing Time on Fresh and Hardened Cast-in-place Concrete Download-PDF. Thumbnails Document Outline Attachments. Previous. Next. Highlight all Match

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Peer Review History: Influence of Mixing Time on

Peer Review History: Influence of Mixing Time on Fresh and Hardened Cast-in-place Concrete. General Comment. Up to 6th August 2012, all SDI journals followed strict double-blind review policy to ensure neutral evaluation. During this review process identity of both, the authors and reviewers are kept hidden to ensure the unbiased evaluation.

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INFLUENCE OF MIXING SPEED AND DURATION ON THE

2021-2-27  fresh and hardened properties of RPC. Production methodology of Reactive Powder Concrete (RPC) is not clearly established yet, as several parameters have a varied influence on the resulting fresh and hardened properties of RPC. Even for the same composition, the fresh and hardened properties differ significantly by changing mixing method ...

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INFLUENCE OF MIXING AND CURING TEMPERATURES

INFLUENCE OF MIXING AND CURING TEMPERATURES ON THE PROPERTIES OF FRESH AND HARDENED SELF-CONSOLIDATED CONCRETE IN HOT WEATHER CONDITIONS Vinh An LE 1,2*, Franck Cassagnabere 1, Michel Mouret1 1 Université de Toulouse, UPS, INSA, LMDC, FRANCE. 2 University of Communication and Transport, Ha Noi, VIETNAM.

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Influence of mixing time and superplasticizer dosage

2020-5-1  Thus, the time and method of mixing materials must be monitored because these factors affect the properties of fresh and hardened concrete . Therefore, mixing time significantly affects the rate of workability loss. The effect of mixing time on concrete can be avoided or reduced by adding alternative cement materials or/and by increasing the SP ...

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Influence of mixing procedure and mixer type on

Mixing concrete is not yet a fully understood issue, with many parameters having an influence on the resulting fresh and hardened concrete properties. Even for the same composition, a somewhat different microstructure can be obtained by changing the mixing procedure and the mixer type. A mixing procedure can differ in mixing time, mixing speed, air pressure in the mixing pan, addition time of ...

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Influence of mixing protocol on fresh and hardened ...

Abstract Mixing procedure as well as type of mixing highly influence the fresh and hardened properties of self-compacting concrete (SCC) besides other parameters such as mix proportions, water to powder ratio, and mineral and chemical admixtures. This study attempts to investigate the effect of different types of mixing on the properties of SCC for providing a guideline in choosing the ...

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Influence of mixing method, speed and duration on the ...

mixing speed and mixing time/duration. The present investigation is an attempt to study the effect of mixing method, speed and duration, on the fresh and hardened properties of RPC.

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Influence of Chemical Admixtures on Fresh and

Effects of different chemical admixtures on fresh and hardened properties of prolonged mixed concrete and their cost-effectiveness were investigated. Influence of sand to aggregate volume ratio, cement content, and use of chilled mixing water on the properties of prolonged mixed concrete was studied as well. Different concrete mixtures were prepared using five different types of chemical ...

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Influence of Mixing on the Fresh and Hardened Concrete ...

2016-1-5  mixer is higher and the mixing time shorter. The amount of mixing energy input is equiv-alent to the area under the respective power curve and was determined by numerical integration in both cases as pre-cisely 0.516 kW/H. The mixing parameters are illustrated in Table 2 below. Results Fresh concrete properties The sequence of the fresh ...

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View of Influence of Mixing Time on Fresh and

Influence of Mixing Time on Fresh and Hardened Cast-in-place Concrete Download-PDF ... Influence of Mixing Time on Fresh and Hardened Cast-in-place Concrete Download-PDF. Thumbnails Document Outline Attachments. Previous. Next. Highlight all Match

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Peer Review History: Influence of Mixing Time on

Peer Review History: Influence of Mixing Time on Fresh and Hardened Cast-in-place Concrete. General Comment. Up to 6th August 2012, all SDI journals followed strict double-blind review policy to ensure neutral evaluation. During this review process identity of both, the authors and reviewers are kept hidden to ensure the unbiased evaluation.

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INFLUENCE OF MIXING TECHNOLOGY ON FRESH

2016-1-5  INFLUENCE OF MIXING TECHNOLOGY ON FRESH CONCRETE PROPERTIES OF HPFRCC Frank Dehn ... HPFRCC is a high performance material whose efficiency is described by its fresh and hardened properties. These can be only utilized sufficiently if the rheology of the fresh ... slump flow funnel time air content 9 10 fresh concrete properties No. 7 8 725 mm 7 ...

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Influence of mixing procedure and mixer type on

2021-7-30  Mixing concrete is not yet a fully understood issue, with many parameters having an influence on the resulting fresh and hardened concrete properties. Even for the same composition, a somewhat different microstructure can be obtained by changing the mixing procedure and the mixer type. A mixing procedure can differ in mixing time, mixing speed, air pressure in the mixing pan, addition time

Get Price

Influence of Chemical Admixtures on Fresh and

Effects of different chemical admixtures on fresh and hardened properties of prolonged mixed concrete and their cost-effectiveness were investigated. Influence of sand to aggregate volume ratio, cement content, and use of chilled mixing water on the properties of prolonged mixed concrete was studied as well. Different concrete mixtures were prepared using five different types of chemical ...

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Influence of Chemical Admixtures on Fresh and

2018-1-1  Since use of chilled mixing water would improve the workability of fresh concrete significantly (Figure 3) without compromising its performance in hardened state, it is advisable to use ice partially with water in ready-mix concrete. 3.2.7. Influence of Age of Concrete.

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Influence of Natural Fibers on the Fresh and Hardened ...

2018-12-7  Influence of Natural Fibers on the Fresh and Hardened Properties of Self-Compacting Concrete (SCC) Vicente Miguel A. Tan, Mon Emilbert F. Yambao, Rodrigo Rafael Bravo, ... full mixing time of SCC was ensured. The freshly mixed ... The time for the concrete mixture to spread to a diameter of 500 mm (T 500) were measured and recorded. T 500

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The influence of aggregate gradation on the fresh and ...

This experimental study is focused on the aggregate gradation impact on the properties of fresh and hardened concrete. For the experiment, 9 mix design were prepared with the constant content of cement, effective water, plasticizer and aggregate. The variable factor is represented by different proportions of 4 fraction (0/0.7, 0/4, 4/8, 8/16). Consistency by slump and flow table in time ...

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Influence of mixing techniques on properties of high ...

2015-5-21  The mixing time for Methods 1 and 2 is 20 min while that for Methods 4, 5 and 6 ranges from 7 to 10 min. As for Method 3, the mixing time follows that specified according to the volume of the pre-mix concrete. The slump and slump flow of each mixing sequence in the Table 1 Chemical analysis and physical properties of cement, slag and fly ash

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