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. As the name implies, "Building Code Requirements for Structural Concrete" is meant to be used as part of a legally adopted building code and as such must differ in form and substance from documents that provide detailed specifications, recommended practice, complete design procedures, or … Bar bending schedules showing now the reinforcement bars are to be bend a real so provided. Fine Aggregate-The sand to be used shall be clean and coarse and shall be free from any organic or vegetable matter. The sand shall be washed, if there is any trace of earth in it. trailer Binding Materials; Road Pavement; Mechanics. It's the best way to discover useful content. The mortar of one cement bag shall only be prepared at a time and it shall be prepared on a water tight platform or in a steel trough. 0000002544 00000 n Rubble Stone Hard Core 83 13. The minimum compressive strength of cement should be 175 kg/ m². • The shuttering and framing is sufficiently braced. Stone dust can also be used as fine aggregate in cement concrete, but … 0000001133 00000 n Water : Water should be clean and free from alkaline and other acidic matter. 112 0 obj <> endobj AWWA C300, C302 and AWWA Design Manual M9 Concrete Pressure Pipe. The concrete shall be laid in forms and tapped in such a way that no honeycomb surface appears on removal of the forms. 1.02 REFERENCE SPECIFICATIONS 0000003890 00000 n CEMENT: Cement belongs to the elementary and most vital component of cement concrete. Mixing should be done by hand mixing or by machine mixing. It should be suitable for drinking purpose. In plain cement concrete coarse aggregate should be hard durable and free from impurities. Aluminium works 128 Fibre Reinforced Concrete (FRC) is gaining an increasing interest among the concrete community for the reduced construction time and labor costs. Reinforcement- All reinforcement shall be of steel which shall comply with the standard requirements. You'll get subjects, question papers, their solution, syllabus - All in one app. startxref Ready mixed concrete for driveways is normally specified in accordance with American Standards for Testing and Materials specification ASTM C-94. 0000003854 00000 n The number of strokes per layer required to produce specified conditions will vary according to the type of concrete. Ferrocement or ferro-cement is a system of construction using reinforced mortar or plaster (lime or cement, sand and water) applied over an "armature" of metal mesh, woven expanded-metal or metal-fibers and closely spaced thin steel rods such as rebar.The metal commonly used is iron or some type of steel, and the mesh is made with wire with a diameter between 0.5 mm and 1 mm. ��K���ta�1�V�wq�A���u��V��C\F�w�!�&'x�7C����,pQ����w�k}J@��:�L��h8��i�%���Z�P(��c�)�D��F� �����T.cm� -� q�m��VQ�}��ҋ��-c�ێ.���@����a[��1�n�r�}$�X|bN��UkzavQp�`2i#3�Y�H�b�*ƨiB�q�8�� =~���o���0lϒ������H�{� ��3�D��Ly�)�)�����ؾWm�GE)��3�}'�c��[ �T���=Y��. C 7 V P 8. Sand should be clean, free from dust and organic matters. Cement should be fresh Portland cement. The concrete from the drum shall be placed on a water tight platform. Sand is used as fine aggregate in cement concrete. Find answer to specific questions by searching them here. The first coat of plaster shall be uniformly applied in the best workmanship manner after watering the surface of walls in advance and putting dots and preparing screeds for maintaining uniform thickness of plastered surface. Coarse aggregate shall be hard, well-burnt or over burnt brick ballast of 40mm gauge. In the most general sense, portland cement is produced by heating sources of lime, iron, silica, and alumina to clinkering temperature (2,500 to 2,800 degrees Fahrenheit) in a rotating kiln, then grinding the clinker to a fine powder. While writing detailed specifications, explain The specifications of every single component should be narrated briefly at the time of formulating detail specifications. ... Statistics. 2. The sponge shall be used in the second coat and it shall be applied when the second coat is wet and it shall be so worked that the density of the sand grains appearing on the surface shall be equal and uniform. A3-4 CONCRETE AGGREGATES The structural drawing is simple to interpret, dimensions are clear. Reinforced concrete (RC), also called reinforced cement concrete (RCC), is a composite material in which concrete's relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength or ductility. 0000002621 00000 n 0000001490 00000 n Introduction; Probability; Home > Detailed Specifications of Cement Concrete. Form work 56 s p o t S 3 r 6 e t a W . Detail specification. Finishing of Exposed surface- All exposed surfaces of the concrete work shall be finished with 12mm thick cement plaster of sagol finish and three coats of white or colour was shall be applied on these exposed … 0 Procedure for First Coat- The first coat for sand faced cement plaster shall be of cement mortar in proportion 1:4 one part of cement to four part of clean, coarse and angular river sand by volume. You must be logged in to read the answer. Water- The water to be used in concrete work shall be clean and fresh. Introduction; Transportation. The cement concrete shall be kept well watered for at least 20 days. Download our mobile app and study on-the-go. 0000000016 00000 n The concrete shall be laid in forms and tapped in such a way that no honeycomb surface appears on removal of the forms. All bars shall be placed as per design given by the engineer and utmost care shall be taken to keep them in the same position while packing concrete around them. Pipe manufactured according to this specification shall be of three classes identified as Class A-II, A-III, and A-IV. RCC (1:1.5:3) for slabs, beams, lintels and staircase: Proportion- The proportion of cement concrete shall be of one part of cement, two parts of sand four parts of aggregates by volume. 0000004363 00000 n 0000001659 00000 n In the former case, the mixing drum shall be turned at least for 1.5 minutes after all the ingredients are added and the drum shall be completely emptied every time. Nearly 325 seismic and masonry codes from all over the world have been analyzed, of countries where stone masonry was, or still is, abundantly practiced. By following the correct specifications and construction methods, it will help avoid problems such as random cracking. Cement- The cement shall be used in this work shall comply with the standard requirements. Laying and compaction should be done before setting of concrete i.e. 0000003632 00000 n Cement, fine aggregates, coarse aggregates and water are mainly used to form cement concrete. 0000003018 00000 n 128 0 obj<>stream Mixing- The mixing of concrete shall be done in a mechanical mixer or by hand operations depending on the quantity of the concrete which shall be decided by the engineer. Sea sand is prohibited for construction work, because of high salt contents. Structural steel 67 10. Procedure for Second coat- The second coat of sand faced cement plaster shall be carried out in CM of proportion 1:1 and shall be of thickness 8mm. 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 The second court shall give uniform grey colour to the whole structure or any other colour approved by the engineer. The second coat shall be applied on the first coat at least after 7 days of completion of first coat. Measurement- The payment shall be made for superficial are covered. 0000001271 00000 n 1. Before laying the concrete, the reinforcement shall be got approved by the engineer. The first coat shall be provided with zigzag lines such that the first coat adheres well with the second coat. • All the joints are perfectly closed and lined up. 20mm thick external plaster in CM (1:4). 0000002301 00000 n within 30 min. Brick work 79 11. Detailed Specifications of Cement Concrete. It should be of good quality and should meet all the standard specifications. STANDARD PRACTICE FOR THE DESIGN AND CON STRUCTION OF REINFORCED CONCRETE STORM SEWER PIPE (RCP) PART 1: GENERAL 1.01 SCOPE OF WORK Furnish all labor, materials, equipment and incidentals necessary to manufacture and test reinforced concrete gravity sewer pipe and fittings as shown on the drawings and specified herein. The heating that occurs in the kiln transforms the raw materials into new chemical compounds. Reinforced Concrete. Reinforcement steel 64 9. A steel cage and or steel cylinder assembly is encased in cement-rich concrete using a vertical cast process. 0000004591 00000 n Flooring 84 14. The material may also be useful in a variety of special grouts and mortars and, when used with an appropriate activator, as the principal cementitious material in some applications. Preliminary- The work of sand faced cement plaster shall be carried out after masonry joints are raked out to a depth of 20 mm and the walls are well watered. The props to be used for centering shall be of timber bullies. The coarse aggregate for the concrete work shall be clean and free from impurities such as earth, coal dust and other organic materials. For cubical specimens, in no case shall the concrete be subjected to less than 35 strokes per layer for 15 cm cubes or 25 strokes per layer for 10 cm cubes. Draft detailed specifications for: 1: RCC (1:1.5:3) for slabs, beams, lintels and staircase 2: 20mm thick external plaster in CM (1:4). Stone Masonry 81 12. RCC SPECIFICATIONS • Shuttering shall be done using seasoned wooden boards of thickness not less than 30mm. Go ahead and login, it'll take only a minute. The bullies shall be supported at the base on 40mm thick wooden plate having area not less than 0.10sq m. The surface of formwork shall be oiled before placing of concrete. GENERAL SPECIFICATION. Centering- The centering for the concrete work shall be sufficiently strong and rigid and in good condition so as to turn out a good smooth surface. 112 17 The thickness of first coat shall be nowhere less than 12 mm, the first coat shall be well watered at least for 7 days. Fine aggregate should contain sharp, angular grain. Reinforced concrete pipe that conform to the requirements of C76 are acceptable under this Specification C76M unless prohibited by the Owner. Sand particles should have coarse, sharp and angular edges. Plain and Reinforced Concrete Specification PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities, this Practice has been prepared from the technical requirements in the existing standards of major industrial users, This specification covers reinforced arch-shaped concrete pipe to be used for the conveyance of sewage, industrial wastes, storm water, and for the construction of culverts. A-3 SPECIFICATIONS, REINFORCED CONCRETE CONSTRUCTION Revised 2005/01/17 Page 2 of 31 3.6.5 Similar separate storage shall be provided for packaged cement. 5. xref 0000000653 00000 n ASTM's cement and concrete standards are instrumental in the evaluation and testing of concrete, cement, and aggregates. 3.6.6 The design and operation of these storage facilities shall be subject to review by the Engineer. Concrete is a versatile material for modern construction which is prepared by mixing well-proportioned quantities of cement (even lime in some cases), sand , crushed rock or gravel , and water . Reinforced Cement Concrete 25 6. The unclean aggregates shall have to be screened and washed before use. Detail specification of lime concrete in foundation are as below:-. It shall be deep cherry red or copper colour and shall be clean, free from dust, dirt and other foreign matters. Finishing of Exposed surface- All exposed surfaces of the concrete work shall be finished with 12mm thick cement plaster of sagol finish and three coats of white or colour was shall be applied on these exposed surfaces of concrete. Coarse Aggregate- The coarse aggregate shall consist of 67% of black trap metal carrying in size from 20mm to 40mm and 33% of black trap metal carrying in size from 20mm to 6mm. The cement concrete shall be kept well watered for at least 20 days. NOTE 1-This specification is a manufacturing and purchase specification only, and does not include requirements for bedding, backfill, or the relationship between field load condition and the strength classification of pipe. %%EOF Dry cast using Type III/V Cement which meets the requirements for both Type III and Type V Cement. Details of Joints in Jointed Unreinforced Concrete PavementThe success of jointed unreinforced … For this reason, many structural elements are now reinforced with steel fibres as partial or total substitution of conventional reinforcement (rebars or welded mesh, [ … The sand to be used in the mortar for the second coat shall be perfectly screened so that sand of uniform size shall appear on the surface. Construct. Size of sand particles should be such that it passes through 4.75mm sieve. Jalal Afsar January 18, 2015 No Comments. 0000001355 00000 n • Surface contact with concrete shall be free from adhering grout, nails, splits and other defects. <<1EC04CF2CE4FDA489D807A6198E595EB>]>> drawings precast reinforced concrete crown units and link slabs shall be designed and supplied in accordance with rta qa specification r16 precast reinforced concrete box culverts 32 2 cover sheets, in this work a detailed study of optimum design of reinforced concrete box culvert was carried out %PDF-1.6 %���� The spacing of bullies shall not be more than 120cm centre to centre. 0000007261 00000 n This paper compares and summarizes design specifications and construction requirements, with a specific focus on “nominally reinforced rubble stone masonry (NRM) with cement mortar and wooden diaphragms in seismic areas.” Proportion : The proportion of the cement concrete should be 1:2:4 or as prescribed. After completion of the second coat, the surface shall be kept well watered at least for 15 days. Materials- All materials shall be per standard specification. Size. Laying and Curing- Before start laying of concrete in position; the centering shall be well watered. Note 1-The material described in this specification may be used for blending with portland cement to produce a cement meeting the requirements of M 240M/M 240 or as a separate ingredient in concrete or mortar mixtures. This project outlines the important components and basic techniques and methods required for structural detailing of a reinforced concrete duplex. Wood work 111 15. Concrete can have different properties depending upon the mixture that is used in creating it, which contains cement, chemical admixtures, and aggregates. The mortar shall be consumed within 30 minutes after adding water. 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