Nov 27, 2013· Construction Project Management. 1. Case study LOGO Construction Project Management 2. LOGO 3. LOGO Contents 1 SCOPE 7 2 CONTRACT & OBS 8 QULITY CONTROL 3 MOBILIZATION & CONSTRUCTION 9 RISK MANGMENT 4 ALTERNATIVES 10 CLAIMS 5 OBS & WBS 11 SAFETY 6 RESOURCES 12 METHOD STATEMENT TIME &COST ANALYSIS COMMUNICATIONS
As we know that during concreting when we place wet concrete, it gets harden after certain standard time( 30 mins IST & 10hrs FST), considering same it had be decided upon by Civil design Engineers to take a factor of safety ranging from 1.54 to 1.57 to counter that shrinkage.
How many groups are there in IS codes for Civil Engineering?
Feb 23, 2009· In this concrete mixture we use 331.20Kg of cement and 0.92 Cubic meter of aggregate and 0.46 *** of sand and water-cement ratio shall be 0.50. Its also called as Cement Concrete (1:2:4) and techincally called as M15 concrete. Here 15 indicates compressive strength of concrete after 28 days of curing in N/Sq.mm. Rajkumar, MJ
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Two grades of concrete M15 and M20 were used for the experimental analysis. The cement was partially replaced by SCBA at 0%, 5%, and 10%, by weight in normal strength concrete (NSC). The innovative part of this study is to consider two grades of concrete mixes to evaluate the performance of concrete while cement is replaced by sugarcane bagasse ...
Adequate number of needle vibrator will be used for proper compaction of concrete. iv. Leveling course Concrete M15 shall be laid to the thickness of 150 mm to reach the required founding level. v. After completion of PCC, head wall below sill level (M15 concrete) is laid accordingly as stated above. And after bedding and laying of pipes, Head ...
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Quality Counts. Make sure that your concrete producer purchases good-quality aggregate as verified by regular aggregate test results in compliance with ASTM C 33, "Standard Specifications for Concrete Aggregates." A history of good performance of a local aggregate also provides an indication of how well the material performs in service.
Sep 10, 2018· Grade of Concrete M10 M20 M25 M40 Grade Concrete Concrete Grade Ratio Grade Of Concrete and water Cement Ratio #gradeofconcrete #watercementratio #M10M20M25M40 Civil Engineer's …
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3. Target average flexural strength for all A, B and C mixes S = S+ Zq =4.5 + 1.96 x 0.40 = 5.3 N/mm 2 at 28 days age 4. For Mix A, B and C free W/C ratio with crushed aggregate and required average flexural target strength of 5.3 N/mm 2 at 28 days from Fig. 1 Curve D found to be 0.42. This is lower than specified maximum W/C ratio value of 0.45 for OPC and 0.50 for PPC.
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Mar 28, 2017· Hi .. So the design mix is M15 i.e, 1:2:4 Ratio sum = 1+2+4 = 7 Volume of concrete = 1 cubic metre ( wet volume ) Now dry volume of concrete = 45–55% increase in volume × wet volume Dry volume= 1×1.52 (assuming 52% increase in volume) Dry volume =...
CONCRETE GRADE: M5 = 1:4:8 M10= 1:3:6 M15= 1:2:4 M20= 1:1.5:3 M25= 1:1:2 CLEAR COVER TO MAIN REINFORCEMENT: 1.FOOTINGS : 50 mm 2.RAFT FOUNDATION.TOP : 50 mm 3.RAFT ...
Used for grades of concrete M25 and M20 Not used for PCC work and its concrete M15. Done according to code IS 1199 . Slumps are of three types. Collapse slump-In a collapse slump the concrete collapses completely. II. Shear slump-In a shear slump the top portion of the concrete shears off and slips sideways. III.
Nominal mixes for grades of concrete such as M15, M20, M25 are generally used for small scale construction. Large structures have high strength requirements, thus they go for higher grades of concrete such as M30 and above. The mix proportions of these concretes are based on mix design.
Jul 16, 2019· Concrete is used for making RCC, DPC, PCC and filling many other holes of building, while cement is very thin paste so only used for concrete making or for making of cement plaster. Cement plaster is a material which is done on the wall of any …
The various factors affecting the mix design are: 1. Compressive strength It is one of the most important properties of concrete and influences many other describable properties of the hardened concrete. The mean compressive strength required at a specific age, usually 28 days, determines the nominal water-cement ratio of the mix. The other
1. Plain or Ordinary Concrete. It is one of the most commonly used types of concrete. In this type of concrete, the essential constituents are cement, sand and coarse aggregates designed, and mixed with a specified quantity of water.. The ratio of essential constituents may be varied within wide limits.
The grade of concrete for various concrete proportions are M10 - 1:3:6 (Cement:Fine aggregate:Coarse aggregate) M15 - 1:2:4 M20 - 1:1.5:3 M25 - 1:1:2
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Latest Civil Engineering Projects for Diploma, B.Tech and M.Tech Students. All These Projects are under RCC Designing, Steel Designing, Prestressed concrete structures design, Staad Pro/E-Tab Based, Transportation Engineering, Environmental engineering, Construction & Estimation Projects, Concrete technology, Geotechnical engineering, Water resources engineering.
M-15 CONCRETE MIX DESIGN . As per IS 10262-2009 & MORT&H . A-1. Stipulations for Proportioning: 1. Grade Designation : M15: 2. Type of Cement: OPC 53 grade confirming to IS-12269-1987
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