Can you Pump Concrete 3 4 agregate w 5 slump Related Information

Aggregate in Concrete - Concrete Network

The maximum size of coarse aggregate that can be used in a mix depends on the size, shape, and reinforcing of a member, based on these "not-to-exceed" guidelines (see Photos 5 and 6): 3/4 of the clear spacing between rebar or between rebar and forms (cover distance) 1/3 the depth of the slab. 1/5 the narrowest dimension of a member

What is the slump value for pouring the mass concrete with

Mar 01, 2010 · 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 batch plants also add water-reducing admixtures — known as

Aggregate in Concrete - Concrete Network

The maximum size of coarse aggregate that can be used in a mix depends on the size, shape, and reinforcing of a member, based on these "not-to-exceed" guidelines (see Photos 5 and 6): 3/4 of the clear spacing between rebar or between rebar and forms (cover distance) 1/3 the depth of the slab. 1/5 the narrowest dimension of a member

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.

ACI mix design - Memphis

Maximum aggregate size (in.) Slump(in) 0.375 0.5 0.75 1 1.5 2 3 6 1 to 2 350 335 315 300 275 260 220 190 3 to 4 385 365 340 325 300 285 245 210 6 to 7 410 385 360 340 315 300 270 - Air Content 3.0% 2.5% 2.0% 1.5% 1.0% 0.5% 0.3% 0.2% Non-Air-Entrained Concrete Mix Design Procedures ACI Mix Design Maximum aggregate size (in.) Slump(in) 0.375 0.5

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.

Slump Loss When Pumping? - Concrete Engineering general

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 …

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.).

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 …

What is the slump value for pouring the mass concrete with

Answer: The required slump depends on the pump, hose diameter, and distance, particularly height. Boom pumps with a six inch pump reduced to a four inch discharge tube and hose will handle pea gravel or small coarse aggregate mixes at slightly less than a four inch slump, but that is pushing the

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

Pumped Concrete-Pump Types, Working, Technique and

Jun 30, 2018 · The maximum size of aggregate used in the concrete for direct acting pump should less than 1/3 rd of the diameter of the pipe to avoid clogging. The motion of concrete always in the form of impulse. However, the output of the pipe should maintain a constant flow. 2.Squeeze concrete pumps. The second type of pump is squeezed concrete pumps.

Can you Pump Concrete (3/4 agregate w/ 5" slump)

Feb 22, 2007 · Is it possible to pump (either w/ boom truck or tow behind unit) Concrete Mix w/ 3/4 inch agregate / 4,000 PSI mix/ 2 to 1 portland cement to water ratio/ w/ a 5 inch slump. I have spoken with my decorative concrete supplier and he says I would have to use (an 'uphill mix" with 3/8 pea gravel.

What is Concrete Slump: Everything You Need To Know

Feb 13, 2018 · To understand, why you need to check the quality of concrete, you must first understand what concrete is. Concrete is a composite material consisting of coarse aggregate which is stick together with fluid cement. Most of the times, the concrete used is lime-based and is termed as the Portland cement concrete.

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.

Major Problems in Concrete Pumping Works: How to Avoid

Major Problems in Concrete Pumping Works 1. Blockage of Concrete Pump. Blockage can occur due to numerous bends in the pipeline, too sharp or too wide turns, gap-graded aggregate, and failure to clean and maintain the pipeline after each concreting work.

Making Concrete Pumpable| Concrete Construction Magazine

Best Mix for Pumped Concrete | JLC Online

Concrete Basics - HomeAdvisor

When you pump concrete, the stone shouldn't be too big - 3/4-inch gravel is a typical maximum for pumped concrete. But if you're taking your mix straight off the chute, gravel as large as 1-1/2 inches should give you no trouble, and large aggregate is actually a good thing to have. For one thing, it helps reduce shrinkage.

If you have good concrete You can pump it

the usual stru c t u r al range of 2- to 4-inch slump and will easily handle good mixes from 2- to 6- or even 7-inch s l u m p . Se g regation can occur in slumps over 7 inches. For slope paving and other low-slump re q u i re m e n t s, pumps have delive r ed concrete with slumps as low as 1 inch at va r ious rates of delive r y. But be

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.