what factors can affect concrete mix

  • Creep Of Concrete - Factors Affecting Creep Of Concrete

    Dec 31, 2016· 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 applied load. When the continuous load is removed, the strain is decreased immediately.

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  • Self-Compacting Concrete Applications and Advantages

    Jun 17, 2019· Long haul distances can reduce flowability of self-compacting concrete. Delays on job site could affect the concrete mix design performance. Job site water addition to Self-Compacting Concrete may not always yield the expected increase in flowability and could cause stability problems.

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  • Factors Affecting Strength of Concrete

    Factors Affecting Concrete Mix Design Strength. The above stated design strength variable factors are explained below based on different theories and specifications. 1. Water/cement ratio. Water to cement ratio (W/C ratio) is the single most important factor governing the strength and durability of concrete.

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  • How Does the Ratio of Sand to Cement Affect the Strength ...

    How Does the Ratio of Sand to Cement Affect the Strength of Concrete? ... In addition to the ratio, the type of sand that you use in the concrete mix also affects the strength of the concrete. Using unwashed beach sand, for instance, is likely to create a concrete mixture that is not as strong as products made with sand that has been cleaned in ...

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  • Factors Affecting Air Entraining Admixtures | Engineering ...

    Mar 13, 2012· These are many factors which has strong influence on strength of concrete. Of these factors are not being considering during mixing then these air entraining admixtures may have some negative impact on properties of concrete. The first and the main factor is the time which it took during mixing with concrete.

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  • What is Workability of Concrete? - Gilson Co.

    A laborer needs a mix that can be moved, placed and consolidated efficiently, and a finisher is looking for something that takes a durable, high-quality finish quickly and easily. A concrete mix with good workability brings many attributes together in balance and results in a quality product with long service life. Factors Affecting Workability

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  • 11 Factors that can Affect the Strength of Concrete

    Factors Affecting concrete strength. There are many factors that can affect the strength of concrete. Some of the more important follow: Concrete porosity. Voids in concrete can be filled with air or with water. Air voids are on obvious and easily visible example of pores in concrete.

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  • Air entrainment and its effects in concrete • Aggregate ...

    Factors Affecting Air Entrainment The air-void system created by using air-entraining agents in concrete is also influenced by concrete materials and construction practice. Concrete materials such as cement, sand, aggregates, and other admixtures play an important role in maintaining the air-void system in concrete.

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  • Tests on Concrete - Concrete Slump Test, Compression Test ...

    The slump test is done to make sure a concrete mix is workable. The measured slump must be within a set range, or tolerance, from the target slump. Workability of concrete is mainly affected by consistency i.e. wetter mixes will be more workable than drier mixes, but concrete of the same consistency may vary in workability. It can also be ...

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  • What factors affect the mix design of concrete? - Quora

    Sep 05, 2017· Many factors are taken into consideration while mix design of concrete. 1. Grade designation; 2. Type of cement; 3. Maximum nominal size of aggregate; 4. Minimum cement content; 5. Maximum water-cement ratio; 6. Workablity; 7. Exposure conditions ...

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  • HOW HOT & COLD WEATHER CAN AFFECT CONCRETE? - …

    Apr 23, 2015· Concrete may suffer irreparable loss in its properties to an extent that compressive strength may get reduced to 50% of what could be expected for normal temperature concrete. C) Stresses Due To Temperature Differentials. Large temperature differentials within the concrete member may promote cracking and affect its durability adversely.

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  • Factors Affecting Compaction - Pavement Interactive

    Using these factors as inputs, MultiCool, a program developed at the University of Minnesota, can easily produce a mat cool-down curve and calculate the time available for compaction. Mix Properties. Mix aggregate and binder properties can also affect compaction.

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  • Ready Mix Concrete Ordering Tips

    Jan 24, 2019· One of the most important factors before ordering ready-mix concrete is knowing the required compressive strength.Typically, reinforced concrete ranging between 3,500 to 4,000 psi is used on footing and slabs on grade; between 3,500 to 5,000 psi on suspended slabs, beams and girders; and walls and columns normally require between 3,000 to 5,000 psi.

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  • Properties of Concrete - Workability, Setting, Bleeding ...

    Factors affecting setting: Following are the factors that affect the setting of concrete. 1. Water Cement ratio 2. Suitable Temperature 3. Cement content 4. Type of Cement 5. Fineness of Cement 6. Relative Humidity 7. Admixtures 8. Type and amount of Aggregate. 2. Workability of Concrete

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  • Factors Affecting Workability of Concrete - Civil Engineering

    The various factors affecting the choice of concrete mix design are: 1. Compressive strength of concrete: It is one of the most important properties of concrete and influences many other describable properties of the hardened concrete.

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  • Durability and Permeability of Concrete

    Jan 05, 2015· Durability and Permeability of Concrete 1. Durability and Permeability of Concrete 130605 Unit-5 2. Syllabus • Durability and permeability of concrete: Definitions, causes, carbonation, cracking. 3. Durability • Durability is the ability to last a long time without significant deterioration.

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  • what factors can affect concrete mix - floorball-flamingos.nl

    CHAPTER 2 ASPHALT CONCRETE MIXTURES. CHAPTER 2 ASPHALT CONCRETE MIXTURES Mix design methods and design requirements form an essential part for all asphalt concrete, These factors can be the result of weather, traffic, or a combination of the two Generally, durability of a mixture can be enhanced, high a filler content can also affect workability It can cause the mix to .

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  • Workability of Concrete - Tests & Factors Affecting ...

    Apr 30, 2016· Workability of concrete is defined as the ease and homogeneity with which a freshly mixed concrete or mortar can be mixed, placed, compacted and finished. Strictly, it is the amount of useful internal work necessary to produce compaction.

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  • factors affecting strength of ncrete mi

    Factors Affecting Concrete Mix Design Strength. The above stated design strength variable factors are explained below based on different theories and specifications. 1. Water/cement ratio. Water to cement ratio (W/C ratio) is the single most important factor governing the strength and durability of concrete.

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  • Factors Affecting Air Entrainment

    factors and their effects are summarized below. Factors Affecting Air Entrainment TECH BULLETIN Factor Effect Cement • An increase in the surface area (or fineness) of cement will decrease the air content. • A high cement factor concrete will entrain less air than a lean mix.

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  • Top 16 Mistakes People Make When Installing Concrete ...

    Everything from the mix design, quantity of concrete to purchase, site preparation, tools, weather forecast, placement process, form removal and curing process need to be … Continue reading "Top 16 Mistakes People Make When Installing Concrete"

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  • What are the Factors Affecting the Choice of Concrete Mix ...

    Thus during initial setting period of concrete, the higher head of hydration can lead to damaging micro-cracking with in the concrete which may not be visible at surface. The situation can be worse when we tend to increase the quantity of the cement in concrete with a belief that such increase are better for both strength and durability of ...

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  • WHAT ARE THE FACTORS AFFECTING WORKABILITY OF CONCRETE …

    Apr 04, 2014· Factors Affecting Workability of Concrete A concrete is said to be workable if it is easily transported, placed, compacted and finished without any segregation. Workability is a property of freshly mixed concrete, and a concrete is a mixture of cement, aggregate, water & admixture. Due to this all the properties of concrete, whether in fresh […]

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  • Concrete Density - an overview | ScienceDirect Topics

    Factors affecting concrete density include aggregate density, air content, and the water and cement content in the design. The increase of the rubber content in the concrete mix results in a decrease in the unit weight of the mixtures. Because of low specific gravity of rubber particles, where δ is about 0.53, unit weight of mixtures ...

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