The properties of concrete mixes pumped over long distances

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  • Sika® ViscoCrete®-140 SK

    High Strength Concrete pumped over long distances Sika® ViscoCrete®-140 SK has been formulated to provide great water reduction, increased slump reten-tion and easier pumpability. Sika® ViscoCrete®-140 SK does not calcium chloride or

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  • Concrete pump - Wikipedia

    A concrete pump is a machine used for transferring liquid concrete by pumping.There are two types of concrete pumps. The first type of concrete pump is attached to a truck or longer units are on semi-trailers. It is known as a boom concrete pump because it uses a remote-controlled articulating robotic arm (called a boom) to place concrete accurately.

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  • Tremie concrete

    cages re s t r ict the flow or when hori z ontal flow over long distances is re q u i red. Wa t e r- reducing or water- re d u c - i n g / re t a rding admixtures are particularly beneficial in reducing water content to provide a cohesive yet high-slump concre t e . The use

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  • Sika® ViscoCrete®-140 SK

    High Strength Concrete pumped over long distances Sika® ViscoCrete®-140 SK has been formulated to provide great water reduction, increased slump reten-tion and easier pumpability. Sika® ViscoCrete®-140 SK does not calcium chloride or

    GET A QUOTE
  • PRODUCT DATA SHEET Sika ViscoFlow®-80

    Concrete pumped over very long distances Concrete in hot weather Concrete with heavily reinforced structures CHARACTERISTICS / ADVANTAGES Sika® ViscoFlow® 80 is a plasticiser which gives con-crete the following properties: Long to extremely long

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  • Mix Design and Pumped Concrete - Civil Engineering …

    Pumped concrete may be used for most all concrete construction, but is especially useful where space or access for construction equipment is limited. 2. Although the ingredients of mixes placed by pump are the same as those placed by other methods, depending quality control, batching, mixing, equipment and the services of personnel with knowledge and experience are essential for successfully

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  • Quick-Mix Readymix concrete| Services

    Up to 300m pipelines can be built when using the stationary pumps and concrete can be pumped over long distances, around corners and upward on to high rise buildings. Available Boom Pump lengths: 24m, 31m, 36m, 42m, 48m

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  • Concrete Pumping FAQs | Frequently Asked Questions - …

    A concrete pump can cover long distances, navigate around obstacles, over uneven ground and through other buildings easily and quickly. If we can't park our concrete mixer trucks close enough to simply pour the concrete straight into the required location, or if you have restricted access that would make wheelbarrowing your concrete unpractical, a concrete …

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  • Pumped concrete - CHRYSO

    Over very long distances, the CHRYSO®Optima 100 Series allows for a low thixotropy of concrete and good workability retention, making it a key solution on the market. CHRYSO®Optima 100 Series holds vertical and horizontal pumpability records (uninterrupted pumping process), and is used on the most prestigious civil engineering structures.

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  • The properties of concrete mixes, pumped over long distances

    Anyway, the pumping of concrete mixtures over long distances is associated with the use of powerful pumping equipment. However, if technological pressure losses depend on the choice of pumping equipment, then rheological and tribological depend on the

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  • Admixtures For Improving Concrete & Mortar Properties

    • Improves the concrete pump ability without increasing the cement content. • Improves the cohesion of the mix and creates 1 % to 2 % of air micro bubbles which increases the lubrication action and enables the concrete to be pumped at lower pressure or over greater distances.

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  • Pumping of Concrete

    While the ease of pumping depends on the type of pump available, the distance over which concrete is to be pumped, and the properties of the concrete, a number of finer aspects can affect the operation. These are discussed on this page.

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  • Quick-Mix | Pruducts | Ready-Mix Concrete pump mixes …

    Concrete is discharged from the vehicle's chute into the loading hopper of a Boom Pump or stationary pump whereby the concrete is pumped over long distances or hard to reach placement areas. Concrete boom pumps vary in length ranging from 24meters up to 48meters.

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  • Pumping of Concrete

    The concrete is fed in by gravity and is also partially sucked in during the suction stroke. The valves open and close with definite pauses so that concrete moves in a series of impulses, but the pipe always remains full. These pumps are capable of pumping 130 m3 of concrete per hour with 8 inch pipes.

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  • Concrete Mix Design - The Best Concrete Mix - The …

    The standard for designing a concrete mix is ACI 211.1, Proportions for Normal, Heavyweight, and Mass Concrete. Like most ACI committee reports, this document is excellent, albeit highly technical. If you want more detail, written in a more user-friendly way, get a copy of the Portland Cement Association's Design and Control of Concrete Mixtures ; that's the bible for concrete mix design.

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

    19/3/2017 · Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to describe the state of fresh concrete is consistence, which is the ease with which concrete will flow. The

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  • Concrete Pumping - How to Pump Cement - The …

    Line length: Concrete being pumped through a line experiences friction with the internal wall of the pipeline. The longer the line, the more friction encountered. For longer pumping distances, the use of smooth-walled steel pipe can lower the resistance. The length of hose used at the end of the pipeline adds to the overall line length as well.

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  • Concrete pump - Wikipedia

    A concrete pump is a machine used for transferring liquid concrete by pumping.There are two types of concrete pumps. The first type of concrete pump is attached to a truck or longer units are on semi-trailers. It is known as a boom concrete pump because it uses a remote-controlled articulating robotic arm (called a boom) to place concrete accurately.

    GET A QUOTE
  • The properties of concrete mixes, pumped over long …

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  • Admixtures For Improving Concrete & Mortar Properties

    • Improves the concrete pump ability without increasing the cement content. • Improves the cohesion of the mix and creates 1 % to 2 % of air micro bubbles which increases the lubrication action and enables the concrete to be pumped at lower pressure or over greater distances.

    GET A QUOTE