Can you Pump Concrete 3 4 agregate w 5 slump

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  • Testing Slump in Your Concrete Mix and Why It Is Important

    Jan 28, 2020 · Ruttura says the ideal is to "have at least 270 pounds of water per cubic yard, although we can pump it with down to about 230 pounds with a well-blended aggregate.". Putzmeister A wide array of factors can impact concrete pumpability such as the dimension, shape, gradation, and volume of aggregates and fibers.

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  • Mconcrete mix design for M50 grade concrete as per latest

    Mar 29, 2020 · 2 Type of cement used OPC 53 grade cement conforming to IS 269 3 Maximum nominal size of aggregate : 20 mm. 4 Exposure condition : Severe exposure condition defined as per table 3 Page no 18 of IS 456 2000 . 5 Workability : 120 mm (slump) 6 Method of concrete placing : Pumping 7 Degree of supervision : Good

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  • Pump Mix for Concrete Wall Construction - Structural

    Feb 12, 2011 · While a 4-inch diameter pump will work fine with a well proportioned 1-inch MSA mix, chances of it working with a 1-1/2 MSA mix are slimmer. A 6-inch diameter line should work fine with a 1-1/2inch mix. RE: Pump Mix for Concrete Wall Construction. rscassar (Structural) 10 Feb 11 06:38.

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  • Concrete Slump Test Procedure, Applications & Types of Slump

    Feb 16, 2017 · Table : Workability, Slump and Compacting Factor of concrete with 19 or 38 mm (3/4 or 1 1 / 2 in) maximum size of aggregate. Slump Test Standards. The concrete slump test is referred to in several testing and building code, with minor differences in the details of performing the test.

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  • Best Mix for Pumped Concrete | JLC Online

    Mar 01, 2010 · Generally speaking, the maximum slump for a pumped mix is about 6 inches. The ideal concrete mix for pumping typically contains air-entraining agents, a little extra sand (compared with a standard concrete mix), often some fly ash, and a well-graded aggregate blend. To make the concrete easier to pump and place as it comes out of the hose, many

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  • What is a concreting pump slump value? - Quora

    Answer: For pump concrete high slump is required to maintain the required flowability of concrete. Slump value shall be as per mix design, however around 100mm or little more using branded admixture i.e without adding water. However slump value can be increased using higher water cement ratio whi

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  • Actual Concrete Mix Ratios For 3000, 3500, 4000, and 4500

    These are the actual concrete mix ratios for 3000, 3500, 4000, and 4500 psi concrete that I use to pour concrete floors, patios, pool decks and more. I'll show you the actual concrete batch plant ticket with the cement, sand, and aggregate break downs for the yards we used.

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  • Air entrainment and concrete - USDA

    2 inches (51 millimetres) 4 ± 1.5 percent air 3 inches (76 millimetres) 3 ± 1.5 percent air a Normal weight aggregate concretes only. For lightweight aggregate concretes specify 7.5 ± 1.5 percent air for resistance to freezing and thawing; for workability, specify 5.5 ± 1.5 percent for lightweight ag-gregate concretes in the 3000- to 4500

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  • Mix Design for Pumped Concrete with PPC, OPC, OPC+Flyash

    The workability of pumped concrete in general has an average slump of between 50 mm and 100 mm. A concrete of less than 50 mm slump is impractical for pumping, and slump above 125 mm should be avoided. In mixtures with high slump, the aggregate will segregate from the mortar and paste and may cause blocking in the pump lines.

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  • Aggregates for Concrete

    AGGREGATES FOR CONCRETE E1-3 sieve and predominantly retained on the 75 µm (No. 200) sieve is called "fine aggregate" or "sand," and larger aggregate is called "coarse aggregate." Coarse aggregate may be available in several different size groups, such as 19 to 4.75 mm (3/4 in. to No. 4), or 37.5 to 19 mm (1-1/2 to 3/4 in.).

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  • What Is Concrete? - CivilEngineeringBible.com

    Excess handling can cause segregation of the course and fine aggregates. Wetting up the concrete so it can be raked or pushed into a location far from where it is discharged is not acceptable. or pumped into place with a concrete boom pump. Concrete is normally specified at a 4-5" slump. Industrial, commercial, and some residential projects

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  • What Is A Concrete Pump | Types Of Concrete Pumps

    1) Pump Lines. Pipelines used in concrete pumps are generally a combination of rigid pipe and heavy-duty flexible pipe. The acceptable rigid pipe can be made of steel or plastic and is available in sizes from 3 to 8 inches in diameter. The aluminum alloy pipe should not be used as a pump line.

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  • Guide To Concrete Workability | Concrete Slump | Concrete2you

    Sizes of coarse aggregate that can be pumped through various p i p e l i n e s * Outside diameter, 3 4 7 i n c h e s Pipe size Inside diameter, 4 5 6 8 i n c h e s Wall gage 1 4 1 4 5 / 3 2 "Cross-sectional area, square inches 6 . 1 1 . 7 1 2 . 6 1 9 . 6 2 8 . 3 3 5 . 1 5 0 . 2 N o m i n a l rounded aggregate 1 1 . 5 1 . 5 2 2 2 . 5 3 …

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  • Concrete - Carnation Construction

    For example, adding HRWR to a concrete with a slump of 3 to 4 inches can produce a concrete with a slump of about 7-9 inches. Within an hour or so the concrete will return to its original slump. HRWR's are covered by ASTM Specification C 494.2 Types F and G, and C 10175 Types 1 and 2.

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  • Testing Slump in Your Concrete Mix and Why It Is Important

    The same holds true for integrally colored concrete: If you change the slump by the addition of excess water, you change the makeup of the entire mixture as well as the intensity of the color. The 4- to 5-inch slump for decorative concrete is a relatively stiff mixture, but not quite as stiff as the 2- to 3-inch slump …

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  • 8 ESSENTIAL QUALITY REQUIREMENTS OF PUMPED CONCRETE

    Mar 21, 2016 · Concrete pumps can be either truck- or trailer mounted and range from small units, exerting pressures from 250 to 300 psi and outputs of 15 to 30 yd 3 /hr, to large units, exerting pressures of 1,000 psi and outputs up to 150 yd 3. The effective capacity of a pump depends not only on the pump itself but also on the complete system.

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  • Slump Loss When Pumping? - Concrete Engineering general

    In the same way 10 mm, 20 mm and 40 mm aggregates shall be combine in the ratio of 1:1.5:3 to get a graded coarse aggregate. Advertisements Fine aggregate of Zone II as per IS: 383-1970 is generally suitable for pumped concrete provided 15 to 30 percent sand should pass the 300 micron sieve and 5 to 10 percent should pass the 150 micron sieve.

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  • Section 03300 Cast-in-Place Concrete Addendum

    c. Vibrate concrete to ensure no movement of reinforcing steel from its final position. 3. Acquire cement and aggregate from same source for all work. 4. Do not use excess grout or mortar to lubricate pipelines when pumping concrete. Also, do not discharge washout water into the forms.

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  • Concrete Mix Ratio And Slump Value Of Concrete

    A properly designed mixture possesses the desired workability for the fresh concrete and the required durability and strength for the hardened concrete. Typically, a mix is about 10 to 15 % cement, 60 to 75 % aggregate and 15 to 20 % water. This concrete mix ratio of aggregate to sand to cement is an important factor in determining the

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  • Trailer Concrete Pumps - How to Pick the Best Pump

    Pea-rock pumps, for example, are designed to pump cement-based mixtures containing a 1/2-inch top aggregate size, such as repair grouts, shotcrete, and self-leveling overlays. Other line pumps can handle higher-slump concretes containing larger coarse aggregate (3/4- to 1 1/2-inch rock). These models are better suited for placing concrete slabs

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