### 3000 psi vs 4000 psi concreteStructural engineering

RE 3000 psi vs 4000 psi concrete. BAretired (Structural) 6 Aug 15 04 36. I can recall in the early 1950 s when 2000 or 2500 psi concrete was used in suspended slabs and beams. Durability was not considered much in those days and the saving was deemed substantial (at least by

Get Price### Concrete Mix Selector GuideQUIKRETE

Concrete Mix Selector Guide Concrete Mix (No. 1101) QUIKRETE 5000 (No. ) Crack Resistant (No. 1006) Fast-Setting (No. 1004) ASTM ASTM C 387 • Structural Concrete Mix Attributes • Normal Set Concrete • 4000 PSI 28 days Strengths • 1500 PSI 3 days • High Early Strength Gain •10 to 12 hr Walk-On Time • 5000 PSI 28 days

Get Price### Ready Mix Concrete Ordering Tips

Jan 24 2019 · Strength . 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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Click to view on Bing11 07Jan 08 2019 · #concretemixingratios #howtomixconcrete #mixingstrongconcreteIn this video I break down the actual mixing ratios between cement sand aggregate (stone) and

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Jun 09 2017 · A strength of 4 000 psi (pounds per square inch) after a one month cure is the industry minimum for concrete driveways slabs and sidewalks. However 4 500 psi as the ideal. According to guidelines published by AsktheBuilder a home foundation requires a thicker pour of 8-10 inches and a psi of 3 500-4 000.

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Increasing the ratio by five times yields a 5 10 15 ratio and this can be multiplied by whatever the actual amount of sugar flour and butter are used in the actual cake recipe. Typical Aspect Ratios and Sizes of Screens and Videos. The aspect ratio is the ratio of a geometric shape s sizes in different dimensions.

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ratio by mass Min. strength f c MPa (psi) No freeze-thaw deicers aggressive substances Select for strength workability and finishing needs Select for structural requirements Concrete with low permea-bility exposed to water 0.50 28 (4000) Concrete exposed to freezing and thawing in a

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averaging 4500 psi. Half of the tests will be below 4500 and half will be above 4500 psi indicating that the producer and contractor supplied and placed concrete with a w/c around 0.45. Through test data I have seen 4500 psi can be achieved with 3500 pound concrete with a w/c of 0.45. Look at the mix data sheets submitted for the project.

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Mar 25 2011 · This is because the high-velocity application itself compresses and densifies the material resulting in higher cement ratios than those found in conventional concrete. In the case of wet-mix shotcrete experts say it should end up close to 4 000 psi. However there s some disagreement regarding dry-mix shotcrete or gunite.

Get Price### Concrete Mix Selector GuideQUIKRETE

Concrete Mix Selector Guide Concrete Mix (No. 1101) QUIKRETE 5000 (No. ) Crack Resistant (No. 1006) Fast-Setting (No. 1004) ASTM ASTM C 387 • Structural Concrete Mix Attributes • Normal Set Concrete • 4000 PSI 28 days Strengths • 1500 PSI 3 days • High Early Strength Gain •10 to 12 hr Walk-On Time • 5000 PSI 28 days

Get Price### Concrete Mix RatiosCement Sand Aggregate and Water

Concrete mix ratio of 1 3 3On mixing 1 part cement 3 parts sand with 3 parts aggregate produces concrete with a compressive strength of 3000 psi. On mixing water with the three ingredients a paste is formed that binds them together till the concrete mix gets hardened. The strength concrete is inversely proportional to the water/cement ratio.

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This concrete mixture ratio of 1 part cement 1 parts sand and 3 parts aggregate will produce a concrete mix of approximately 2500 to 3000 psi. Mixing water with this cement sand and aggregate will form a paste that will bind the materials together until the mix hardens. This strength properties of the concrete are inversely proportional to

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How to Simplify a Ratio A B when A and B are both whole numbers. List the factors of A. List the factors of B. Find the greatest common factor of A and B GCF (A B) Divide A and B each by the GCF. Use the whole number results to rewrite the ratio in simplest form. If the GCF = 1 then the ratio

Get Price### 4000 psi VS 5000 psi ConcreteStructural engineering

A new structural engineer has been assigned to the project. I received the concrete mix design shop drawing for a 4000 psi. and report from the new structural engineer stating that the concrete section capacity is only 1 less if 4000 psi to be used instead of using 5000 psi. He attached a simple calculation of the moment using As x fs value

Get Price### What is 5 bag mix 6 bag mix 3000 PSI 3500 PSI 4000 PSI

We recommend a 6-1/2 bag mix or 4 000 PSI concrete with a 6-8 air entrainment and low slump in the 3-4"range to avoid Spalling of the surface from the winter. Then depending on the weather conditions one might add fiber-mesh and a retarder to help the workability of the concrete

Get Price### How to Calculate Water Cement RatioThe Concrete Network

May 08 2020 · Durability increases the less permeable the concrete mix is. Strength improves with lower water cement ratios. A .45 water cement ratio most likely will hit 4500 psi (pounds per square inch) or greater. A .50 water cement ratio will likely reach 4000 psi or greater. For complete Uniform Building Code information regarding concrete construction

Get Price### Ready Mix Concrete Ordering Tips

Jan 24 2019 · Strength . 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.

Get Price### Concrete Properties and Mix Design

Relationship Between w/cm Ratio and Strength 2000 0.82 0.74 3000 0.68 0.59 4000 0.57 0.48 5000 0.48 0.40 6000 0.41 0.32 7000 0.33 — Air-entrained concrete Non-air-entrained concrete Water-cementitious materials ratio by Compressive mass strength at 28 days psi

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To achieve uniform color throughout your project be consistent with the amount of Water Mix and Pigment used. Step 1 Select Base Concrete Color. Base Concrete Color White Gray. Step 2 Select Pigment Color. if the display looks "off" below please toggle the base color. Step 3 Select Concrete

Get Price### How Long Does Concrete Take To Set Concrete Cure TImes

May 26 2019 · Curing Time for Concrete. In standard industrial cases full strength concrete is recognized at 28 days. At seven days you should have concrete that is cured to 70 full strength or greater. But to answer the question of "How long does concrete take to set " concrete setting time is generally 24 to 48 hours.

Get Price### Understanding Minimum Specified Compressive Strength

averaging 4500 psi. Half of the tests will be below 4500 and half will be above 4500 psi indicating that the producer and contractor supplied and placed concrete with a w/c around 0.45. Through test data I have seen 4500 psi can be achieved with 3500 pound concrete with a w/c of 0.45. Look at the mix data sheets submitted for the project.

Get Price### What is the concrete ratio for 3000 psi Quora

Nominal mix to obtain M20(3000 Psi) grade concrete is 1 1.5 3(cement sand coarse aggregate) by volume. But normally you will get the strength even when you use 1 2 4 mix. The main consideration in any concrete construction is to get durability an

Get Price### Concrete Mix Selector GuideQUIKRETE

Concrete Mix Selector Guide Concrete Mix (No. 1101) QUIKRETE 5000 (No. ) Crack Resistant (No. 1006) Fast-Setting (No. 1004) ASTM ASTM C 387 • Structural Concrete Mix Attributes • Normal Set Concrete • 4000 PSI 28 days Strengths • 1500 PSI 3 days • High Early Strength Gain •10 to 12 hr Walk-On Time • 5000 PSI 28 days

Get Price### What is 5 bag mix 6 bag mix 3000 PSI 3500 PSI 4000 PSI

We recommend a 6-1/2 bag mix or 4 000 PSI concrete with a 6-8 air entrainment and low slump in the 3-4"range to avoid Spalling of the surface from the winter. Then depending on the weather conditions one might add fiber-mesh and a retarder to help the workability of the concrete

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3000 3500 4000 4500 5000 5500 6000 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 WATER-CEMENTIOUS RATIO CEMENT-VOIDS RATIO C o m p ressi ve Strength 28 day (psi) 14 21 28 35 42 C o m p ressi ve Strength 28 day (Mpa) C-V RATIO W/C RATIO AIR ENTRAINED W/C RATIO NON AIR ENTRAINED Figure B 5-694.213

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For large concrete jobs (of 4 cubic yards or more) the concrete calculator can help you see the amount which needs to be delivered by a ready-mix truck. For small to medium jobs we advise you to mix your own concrete in a concrete mixeror purchase sacks of ready-mix that only require water.

Get Price### Actual Concrete Mix Ratios For 3000 3500 4000 and 4500

These concrete mix ratios for 3000 3500 4000 and 4500 psi concrete come from the ready mix concrete company I use to pour concrete floors slabs patios pool decks and stamped concrete. I m going to show you the actual batch plant ticket they give me when the concrete trucks show up on the job and we pour the concrete.

Get Price### What is 5 bag mix 6 bag mix 3000 PSI 3500 PSI 4000 PSI

We recommend a 6-1/2 bag mix or 4 000 PSI concrete with a 6-8 air entrainment and low slump in the 3-4"range to avoid Spalling of the surface from the winter. Then depending on the weather conditions one might add fiber-mesh and a retarder to help the workability of the concrete

Get Price### What is the concrete ratio for 3000 psi Quora

Nominal mix to obtain M20(3000 Psi) grade concrete is 1 1.5 3(cement sand coarse aggregate) by volume. But normally you will get the strength even when you use 1 2 4 mix. The main consideration in any concrete construction is to get durability an

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