SKY Machinery Co., Ltd.

Company Profile

As the leader of global crushing and grinding industry, SKY always insists on science paralleling with quality and seeking innovation & excellence. For a long time, SKY has always strived to create a leading brand and the most valuable brand of global mining machines with strong production capacity as development foundation, perfect research power as quality guarantee and excellent service systems as brand extension.

Go on the path to excellence --- respect industrial value of SKY

  • Established in 1987, SKY has had 30 years of experience in mining machine industry.
  • Only can Lingang production base bring annual output value of 4 billion yuan. This base is strong enough to influence the whole Asian area, even the situation of world mining machine production.
  • The area of 6 domestic first-class digital mining machine production bases and 1 biggest mining machine manufacturing factory over the world amounts to over 600 thousand square meters.
  • SKY sales net covers over 160 countries and regions from different continents and overseas offices were established in more than 20 countries.

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How to find out whether concrete is m25 or m30 - Quora

Thanks for the A2A There are a few methods to fing out the difference in M25 and M30 Method , In a compressive strength test, a casted concrete cube is immersed in water for 28 days under normal , What is the maximum cement quantity for m25 grade concrete using admixture, considering all the other features?

What is the meaning of M15 M20 M10 concrete? - Quora

According to the Indian standard, M15, M20, M30 etc are grade designations It means a 150 , Both combinedly termed as Grade of Concrete Thus, a concrete of M30 grade should attain a compressive strength of 30 N/sqmm at 28 days age

CONCRETE MIX DESIGN AS PER IS 10262 | srinivasan , - LinkedIn

11 Jul 2015 , Maximum Density and Minimum Voids method High Strength Concrete Mix Design method , as adopted in the definition of Characteristics Compressive Strength, The value of 's' first time design of M30 grade Concrete is 5.

Concrete as a Building Material | Reinforced Cement Concrete ,

Therefore M30 concrete will have a compressive strength of 30 n/mm2 A standard mix may also specify the maximum aggregate size Aggregates are the stone.


When, its strength have reached 99% in 28 days, still concrete continues to gain strength after that period, but that rate of gain in compressive strength is very.

Compressive Strength of Cement Concrete Cubes

4 Sep 2013 , Testing of Concrete Compressive Strength - Cube Test - Duration: 7:45 Civil Engineering Bitz!! 13,061 views 7:45 Determination of Liqu

Compressive Strength of Medium Strength M30 Grade Self ,

, techniques on compressive strength of M30 grade self-compacting concrete , Max Mix M30 1 Slump-flow mm 600 800 620 2 T50-Slump flow sec 2 5 38 3.

Compressive strength of M30 grade for density 1800 Kg / m 3 at 28 ,

But irrespective of the grades of geopolymer concrete blocks, the compressive strength was found to increase with the increase in density, the maximum strength.

Concrete Mix Design – M 20 Grade Of Concrete

ii) Avg comp strength 7 days = 465 more than 330 OK , For W/C = 06 CF = 08 Max Agg Size of 20 mm a) Water content = 186 Kg/cum , me the values of compressive strength to be attained for M15,M20,M30 for 7days,14days,28 days

Quality Control Of Construction Testing Of Concrete Cubes

The acceptance criteria of quality of concrete is laid down in IS:456-2000 , The compressive strength of concrete shall be calculated from:Maximum.


To determine the compressive strength of concrete specimens prepared and , (VIII) Record the maximum load and note any unusual features in the type of failure , strength (N/mm2) at 28 days M15 10 15 M20 135 20 M25 17 25 M30

Compressive Strength of Concrete & Concrete Cubes | What | How ,

Understand what is compressive strength of concrete & how compressive strength is determined from , M30, 30 N/mm2 , The measured compressive strength of the specimen shall be calculated by dividing the maximum load applied to the.

Concrete mix design - SlideShare

27 May 2013 , 3428 Days Compressive Strengths of Trial MixesW/CRatioC/W , Maximum Water-Cementratio and Minimum Grade of Concrete for , Cement content& W 42TEST REPORTConcrete Mix RCC M30 with 200mm MSASlNo

Full text of "10 Civil IJCSEIERD Suitability Of Demolished Concrete ,

Highest compressive strength at all stages was noted with concrete made from , 28' Day Strength Prediction 81 Normal vs Accelerated Curing mix M30 0 10 20.

How to calculate compressive strength of concrete?

proposition as M15,M20Then after one day the curing on concrete cube @7days or 28daysthen we findout the compressive strength of concreteThe formula for