detailed specification for plain cement concrete

How to select suitable concrete grade for construction? GENERAL SPECIFICATION. (ii) Laying of base concrete: The base concrete used under floors may be cement concrete or lime concrete laid to a thickness varying from 75 to 10 cm. The spacer blocks, their positioning and fixing shall be in accordance with good practice as recommended by the Concrete Society in their … Water shall be clean and free from alkaline and acid matters and suitable for drinking purposes. Some types of concrete include sand, chemical mixtures, and water. Detailed specifications of Cement Concrete, Subscribe to Engineering Intro | Engineering Intro by Email, The Importance of Fall Protection Systems on Construction Sites, Pressure Vessels & Benefits of Rupture Disc, How Termites Can Destroy the Foundations of a House and What to Do About It, How to Identify, Classify & Manage Project Stakeholders, Strains In Concrete | Strains Amount | Elastic Strains. The slag cement inspection is based on the standard test methods for determining the physical properties of slag cement. PLAIN CONCRETE PAVEMENT WITH JOINTS Plain concrete pavement with joints has no reinforcing steel but is constructed with various transverse joint spacing (joints from edge of pavement to edge of pavement). 456-2000 Code of practice for plain and reinforced concrete 457-1957 COP for general const. Plain Cement Concrete (PCC) is a construction material generally used as a binding materials and is composed of cement, (commonly Portland Cement) and other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate made of gravels or crushed rocks such as limestone or granite, plus a fine aggregate such as sand), water, and chemical admixtures. Concrete is a combination construction material made of cement, ash, gravel, limestone, and granite. The code was further revised in 1964 and published under modified title ‘Code of practice for plain and reinforced … Material Used in Plain Cement Concrete. View Complete Details. of plain & reinforced concre te for dams & other massive structure. Proportion : The proportion of the cement concrete should be 1:2:4 or as prescribed. In case of cement concrete, the mix commonly used is 1:5:10 (1 cement: 5 sand : 10 stone or over burnt brick aggregates 40 mm. Thanks..Can you show me how you compute for the PCC? Tensile Strength: 50 – 100 Kg/centimeter.square. RWD Tender For Civil Works Roads Mmgsy Ndb Brrp 320 Benipur , Due Date: 11-01-2021 ,Tender Value: 50037100 ,City : BENIPUR, Location: Bihar Tender Notice 26489348 Fine aggregate should contain sharp, angular grain. Coarse aggregate shall be hard, well-burnt or over burnt brick ballast of 40mm gauge. These ingredients are mixed with water to create concrete which is used as a primary construction material in buildings. 10. Shape of coarse aggregates should not be laminated and elongated. Sand should be clean, free from dust and organic matters. It should be clean and free from any irrelevant organic matters. Reinforced cement concrete (R.C.C) is the combination of ordinary concrete with the reinforcement to increase its compressive and tensile strength to a great extent. Sea sand is prohibited for construction work, because of high salt contents. After about two hours of laying of concrete, when the concrete has begun to harden, it shall be kept damp by covering with wet gunny bags or wet sand for 24 hours. 16. Mixing machine is used for large scale construction works. 10. Group: Concrete Grade: Mix Ratio: Characteristic Compressive Strength (N/mm2) Ordinary Concrete : M5: 1 : 5 : 10: 5 N/mm 2: M7.5: 1 : 4 … All the coarse material should be retained in a 5mm square mesh and should be well graded such that the voids do not exceed 42%. by the Cement and Concrete Sectional Committee had been approved by the Civil Engineering Division Council. (2) IS 1542 Specifications for sand for plaster (3) IS 2645 Specifications for integral cement water proofing compound (4) IS 8112 Specification for 43 grade OPC (5) IS 269 Specification for 33 grade OPC (6) IS 1489 Specification for Portland Pozzolana cement 2.0 MATERIALS 2.1 Cement 2.1.1 Cement shall be ordinary Portland cement conforming to IS. thick, well compacted,( FOR DETAILED SPECIFICATION … In summers, temperature of concrete should not exceed 38 Degree Celsius. Brick Masonry in Cement Mortar … Specification and standards . It incorporates standards and guidance in one document and usefully includes a detailed description for each of the standards stipulated by BS EN 13670 for visual in-situ concrete. For plain cement concrete works, generally M15 is used. Om G Designs. I take the vision which comes from dreams and apply the magic of science and mathematics, adding the heritage of my profession and my knowledge of nature's materials to create a design. Portland Cement. Aggregate shall be of invert materials and should be clean, dense, hard, sound, durable, non-absorbent and capable of developing good bond with mortar. Detailed Specifications for Cement Concrete provides a step by step description and specifications for various phases of concrete production and application such as materials, mix proportions, mixing of content, workability, formwork, laying and curing. The Minimum grade of concrete for Plain Cement Concrete (PCC) is M15. Size of sand particles should be such that it passes through 4.75mm sieve. within 30 min. 5 /5 … The apparatus and procedures specified in this standard are examined during an inspection. Advanced Cast Stone’s Precast Architectural Concrete Standard Specifications ... 15. Fine aggregate shall be of coarse sand consisting of hard, sharp and angular grains and shall pass through a screen of 5mm square mesh. Concrete spacer blocks shall be made from cement, sand and small size coarse aggregate. General Plain Cement Concrete Specifications in Pennsylvania. This results in segregation of concrete. Sand shall be of standard specifications, clean and free from dust, dirt and organic matter. Reinforced cement concrete (R.C.C) is the combination of ordinary concrete with the reinforcement to increase its compressive and tensile strength to a great extent. Smooth the top layer, whenever concrete pouring is finished. The National Structural Concrete Specification (NSCS v4) is a sound basis specification for concrete, especially when … Sand should be clean, free from dust and organic matters. Cement should be fresh Portland cement. Scope of Work . We ... (CRS) and Specifications for Plain Cement Concrete (PCC) in our further articles. Cement is the basic and most important ingredient of cement concrete. NUMBER OF CEMENT BAGS REQUIRED FOR A SPECIFIC CEMENT CONCRETE RATIOS • For cement concrete of ratio 1:1:2(1 cement:1sand/coarse sand:2graded stone aggregate) require 11no bags of 50kg. DETAILED SPECIFICATIONS OF EXCAVATIONS, FILLING AND BACK . It shall be deep cherry red or copper colour and shall be clean, free from dust, dirt and other foreign matters. The stone ballast shall be of 20mm size and smaller. 20.2.2 Using Batching Plant, Transit Mixer and Concrete Pump (RCC M 35) Providing and laying steel reinforcement at any level in foundation complete as per drawing and technical specification. The requirements are set forth in the Standard Specification for Slag Cement for Use in Concrete and Mortars (ASTM C989). Size of sand particles should be such that it passes through 4.75mm sieve. Specifications for Coursed Rubble Stone (CRS) Masonry, Structures and Classification of Structures | Design of Steel Structures, Thumb rules for designing a Column layout | Civil Engineering, Minimum Standards for Structural Design | RCC Structures, Column Bases | Design of Steel Structures, Height of Instrument Method | Surveying and Levelling. Among the most important properties of ordinary concrete, the following may be mentioned. For plain concrete 2000 For reinforced concrete 500 Suspended matter 2000. Minimum compressive strength of concrete of 1:2:4 proportion shall be 140 kg/cm2 in 7 days. Code of Practice for General Construction of Plain and Reinforced Concrete for Dams and Other Massive Structures: IS 516 (pdf) IS 516 (txt) 1959: Method of Tests for Strength of Concrete: IS 650 (pdf) IS 650 (txt) 1991: Specification for Standard Sand for Testing of Cement : IS 1199 (pdf) IS 1199 (txt) 1959: Methods of sampling and analysis of concrete: IS 1343 (pdf) IS 1343 (txt) 1980: Code of … Application : All over mumbai : Grade Standard : 30 : Minimum Order Quantity : 500 Square Feet : We are into the specialised in all kind of PCC WORKS FOR the buildings, roads etc. For example, for M20 concrete, mix proportion will be 1:1.5:3 for cement:sand:coarse aggregates. 520 PLAIN AND REINFORCED PORTLAND CEMENT CONCRETE PAVEMENTS 420 . Concrete is a mixture of coarse (stone or brick chips) and fine (generally sand or crushed stone) aggregates with a paste of binder material (usually Portland cement) and water.When cement is mixed with a small amount of water, it hydrates to form microscopic opaque crystal lattices encapsulating and locking the aggregate into a rigid structure. Vibrator should be used for the compaction of concrete. 1.2 It may also be noted that the specification are of generalized nature and these shall be read in conjunction with the description of item in schedule of quantities and drawings. The … Sand is used as fine aggregate in cement concrete. As per IS 456:2000, the grades less than M20 should not be used in RCC works. If it is important, then make possible arrangement of equipment’s that are used for concreting under water. Specifications for Plain Cement Concrete (PCC) | Building Estimation and Costing. … • The shuttering and framing is sufficiently braced. Make sure the upper layer should be pour before the beginning of final setting of first concrete layer. Regular slump test should be carried out to control the addition of water and to maintain the required consistency. FILLING . September 5, 2010 by Designer. These … Concreting under water should be completed simultaneously and avoid joint between two concrete layers. guide me how to design the foundation for Green House structure where we are using steel column as 113.5×113.5x 5.7mm thick x 4.88mtr above this 3.1 mtr ht gable type truss span of the truss is 12.80. total area of green house is 563.2 sq. RCC SPECIFICATIONS • Shuttering shall be done using seasoned wooden boards of thickness not less than 30mm. Mixing shall be done on masonry platform or sheet iron tray. General Specifications (Flooring) First Class Building s 2.5cm cement concrete over 7.5cm lime concrete Second Class Building s 2.5cm cement concrete over 7.5cm lime concrete. Coarse aggregate shall be hard, well-burnt or over burnt brick ballast of 40mm gauge. Separate size No. DETAILED SPECIFICATIONS OF EXCAVATIONS, FILLING AND BACK . natural sources for concrete. The mixture of cement, fine aggregate (sand) and coarse aggregate are generally called plain cement concrete (PCC). Use size No. 830.09+ Rs. Typical concrete is composed of coarse aggregate (crushed stone and gravel), fine aggregate such as sand, Portland cement, admixtures and water. Coarse Aggregate. If you continue to use this site we will assume that you are happy with it. thanks… can you give me an example how to compute for the PCC for say a villa project? Formwork centering and shuttering shall be provided as required as per the standard specification before laying concrete to confine to support or to keep the concrete in position. It shall be homogeneous in texture and roughly cubical in shape. the information was really helping………………….. A minimum portland cement content of 564 pounds per cubic yard (335. kilograms per cubic meter) of concrete, with a maximum ... plain and reinforced concrete pavements. Density: 2200 – 2500 Kg/meter.cube. REINFORCED CEMENT CONCRETE(RCC) The cement concrete in which reinforcement is embedded for taking tensile stress is called reinforced cement concrete. This specification helps as a guide for how to carry out cement concrete works for various purposes. Concrete shall be laid gently (not thrown) in layers not exceeding 15cm and compacted by pinning with rods and tamping with wooden tampers or with mechanical vibrating machine until a dense concrete is obtained. For reinforced concrete construction minimum M20 grade of concrete are used. This is the informatio that I need. If concreting is not completed in one go, then rough the top layer before it gets harder. IS 456: … 4 and size No. Malad East, Mumbai, Maharashtra. Providing and laying in position plain cement concrete of mix 1:3:6: KSRB 4-1.7: Providing and laying in position plain cement concrete of mix 1:3:6 with OPC cement @ 220 kgs with 20mm and down size graded granite metal coarse aggregates @ 0.84cum and fine aggregates @ 0.56cum machine mixed, concrete laid in layers not exceeding 15 cms. The scope for work covered under this specifications pertain to excavation of foundations, trenches, pits and over areas, in all sorts of soil, soft and hard rock, correct to dimensions given in the drawing including shoring, protections of existing underground utilities of any, such as water lines, electric cables etc. Concrete Ratio Amount of Water, 1:3:6 34 liters, 1:2:4 30 liters, 1:2:3 27 liters, 1:1:2 25 liters. While, hand mixing is preferred as it is economical for smaller concrete works.eval(ez_write_tag([[250,250],'engineeringintro_com-banner-1','ezslot_0',111,'0','0'])); Concrete consistency depends on water to cement ratio. Geometric design 5. 1 For 200 mm thick Walls 20. (1) IS 269 Specification for 33 grade Ordinary and low heat, portland cement (2) IS 383 Specification for Coarse and fine aggregates from natural sources for concrete (3) IS 456-2000 Code of practice for plain and reinforced concrete (4) IS 460 Specification for test sieves (Part I, II & III) i) Wire cloth test sieve Sir plx tell me which is better opc or pcc, The “P” refers to PORTLAND as in the type of cement used in the concrete. In winters, if temperature drops below 4.5 Degree Celsius than stop concrete work immediately. The types of joints used in plain concrete are shown in Figure 1-3. Sand particles should have coarse, sharp and angular edges. ASTM's cement and concrete standards are instrumental in the evaluation and testing of concrete, cement, and aggregates. 456 : 2000 ( R••fflrmed2005) Indian Standard PLAIN AND REINFORCED CONCRETE CODE OF PRACTICE ( Fourth Revision) Tenth Reprint APRIL 2007 (IncludingAmendments No. Sea sand is prohibited for construction work, because of high salt contents. ... 523 JOINT SEALING OF PORTLAND CEMENT CONCRETE PAVEMENTS 524 DOWEL BAR RETROFIT 535 PAVEMENT SURFACE PROFILE 549 PAVEMENT MARKINGS 550 PAVEMENT MARKING PAINT 551 PAVEMENT MARKING TAPE ... FSS Federal Specifications and Standards, General Services … Plain concrete is mostly used in the construction of pavements and in buildings, where very high tensile strength is not required. By definition, Compressive Strength: 200 – 500 Kg/centimeter.square. 1:2:4 (cement : sand : stone ballast) by volume when specified. 516-1959 Methods of test for strength of concrete 1161-1963 Specifications for steel tubes for structural purpo ses 1199-1959 Methods of sampling and analysis of concrete. In this article, we are going discuss or rather list out all the specifications that are to be given for “Brick Masonry in Cement Mortar”. Size of coarse aggregates should meet the approved construction work requirements. Detail specification of lime concrete in foundation are as below:-Detail specification. In case, vibrator is not possible to arrange then use Rod for compaction. The ASTM Standard Specification for Portland Cement (ASTM C150) provides for five types as follows: - Type I—The standard product that has long been in use with no limitation on the proportions of the major oxides (CaO, SiO 2, Al 2 O 3, Fe 2 O 3), also referred to as “ordinary portland cement.” Generally, initial setting time of normal Portland cement is 30 minutes. The mix proportions shall match those of the surrounding concrete and the blocks shall be comparable to the surrounding concrete in strength, durability and appearance. This makes a strong joint with the new layer whenever it is casted.