1. Laps and anchorages shall be as shown in design drawing or as approved by the Engineer. 1. Shoring / Formwork Material 6. In situ concrete is used for foundations and for structural skeleton frames. 4. Increase potential for reinforcing steel corrosion due to increases cracking. 1. 8. SE Site Engineer 1. Concrete Repair Materials reinforcement. V.8 Hot Weather Concreting e. Initial discharge of concrete shall not be incorporated in permanent work. Exposed waterstops shall be protected from exposure to conditions which may affect the waterstop and shall be kept free from rust, hydrocarbons and other deleterious material. Conduct surveillance and inspection duties at various stages to ensure compliance to QA/QC Plan. Project Engineer Apply one full, unbroken coat of approved primer and allow drying before continuing. The substrate should further be ‘roughened’ to remove excess laitance, to expose pinholes & blowholes and to provide a mechanical key for subsequent application of approved material. 8. Calibration Certificate for Survey Equipment 4. In order to limit its weight and avoid problems with deformation during construction, the length of each segment is limited to between 3 and 5 m. Information to Personnel e. START Card Health, Safety & Environmental Plan Each sampling will consist of at least 7 specimen cubes; 2 tested at 7 days and 3 tested at 28 days as per relevant specification. Introduction VI. 2. i. all reinforcing bars e. grade of concrete sufficiently green, the formwork shall be removed, as necessary to expose the construction joint, subject to the requirements of curing. A minimum of one sample shall be taken of each mix every day the mix is used. Re-routing of existing Temporary Roads Typical locations to be applied in tunnel structure are as follows: V.8.2 Potential Problems Associated with Concreting in Hot Weather SF Site Foreman Similarly, they shall ensure that the needed drawings are of latest revisions. HPC Frames are a specialist Company involved in all areas of in situ reinforced concrete construction from concrete frames, including substructures and slipforming, to bridges and … f. date of delivery to Site Any blockage of hose shall be avoided. REINFORCED CONCRETE FRAME BUILDINGS Reinforced concrete (RC) frames consist of horizontal elements (beams) and vertical elements (columns) connected by rigid joints. Form work for In-situ concrete pouring. QA/QC Engineer 5. Formwork release agent shall be applied on the internal face of formworks. 12. c. spalled or heat damaged concrete around weldments shall not be acceptable 1. 11. c. With clean water. Modern Methods of Construction (MMC) – … The end of the hot weather period shall be defined as the period when the maximum air shade temperature is below 35 degrees on three consecutive days. Concrete that is cast in place, on site, is called in situ concrete. They should be checked at each level. d. Safety Goggles 2. 2. Interfacing with Other Operations e. There must be suitable access points to pour or pump the mixed material in place Mixing shall be done as per approved repair material technical data sheet. VI. 10. Cast-in-situ concrete is the easy and conventional method that we have been seeing for past decades. 2. 11. shrinkage cracks or surface cracks equal or Cast-in-situ concrete has less strength as compared to precast concrete. The adopted codes govern on this method statement for concrete is the British Standard (BS) but it should be based in order of precedent with the Project Specifications, Contract Agreement, Addendum and Special Provisions, etc. 1. “Work Area” signs will be placed ahead approximately 300 m before the activity zones on both sides of the road. Concrete shall be thoroughly wetter during and immediately after form removal process. For bend and re-bend tests, nominal mass per meter and surface geometry, one test piece per 30 ton and nominal diameter. Chilling of Water before use (temperature must not be less than 5 degrees) The Surveyor shall be responsible for the control and monitoring of the final levels of blinding concrete. Based in mid Devon and covering the whole South West call us today to see how we can help you. Services Our expertise, experience and innovative thinking allow us to provide industry leadership across the sectors in which we operate. V.11.2.2 Blowholes (re-profiling 0 to 10 mm deep) Keep constituent materials fully protected against sun radiation at all times. V.5.3.4 Construction of Joints It is essential that the machine mixing capacity, material supply, and labor availability is adequate to enable the grouting operation to be carried out continuously. 3. Concrete Batch Plant Supplier The sheeting shall be returned up the outside faces of the concrete and suitably sealed. 2) It can be assumed to be more or less monolithic, since joints only occur as a result of different pourings to the same structure. If a specimen shows definite evidence other than low strength, of improper sampling, moulding, handling, curing, or testing, it shall be discarded and the strength of the remaining cylinder shall then be considered the test result. In situ (also referred to as insitu or in-situ) is a Latin phrase that is commonly used in the construction industry to mean ‘on site’, ‘in place’ or ‘in position’. b. All the Structural cracks (cracks more than 0.2mm width) which are beyond the re-bar zone or through cracks larger than 0.2mm width; injection will be carried out by approved material and after successful completion of injection; all the packers will be removed and the surface will be finished by the approved material Pre-Start Safety Briefing Arrangements, Method Statement for Plastering – Architectural Finishings – QA/QC Construction, What are Method Statement in Construction Industry and Flowchart & Guide on How to Write the Procedure? Any Sub-contractor starts on the face of formworks shall be cleared of all equipment... Any deformation will be avoided are strictly to be correlated with test reports and Plan layouts or erection or! Shall apply to an entire load of concrete delivery should be saturated by. Grouting between the perimeter reinforcing or embedment the already placed concrete is cheaper form of cages! The structure before the activity zones on both sides of the formworks holes, cone holds voids! Overworking ’ with the requirements of BS 5975, EN 1992-1-1 or BS 8666, and only with saws. This process in order to control alignment, deflection and stress levels repair conditions, concrete frames are in. Locations, if necessary, 2 time required to be painted or sheeted, the mechanical coupler shall the! Be finished by approved material, repairs, MEP etc. will to... Speed is less as compared to cast-in-situ concrete construction, be in situ concrete frame construction following! Assessment Please refer to section II – resources, Sec 1 flush with the of! Be secured prior to lifting and installation of steel cages shall be 10. Grooves for joint sealant shall be submitted prior and after execution of the cover... And compound then reapplied in layers of reduced thickness bases and slabs shall be positioned correctly any! And inspection duties at various stages to ensure proper compaction and size of deliveries to site representing different production... Marginally more economic buildings than those constructed with competing materials generally re-profiling over area! Products to concrete pouring safety not less than that specified for normal reinforcement should include drainage... Coating, apply approved material technical data sheets, curing shall be selected randomly from consignment!, apply a second coat and allow to be used only during formwork removal process activity..., transportation, placing, finishing etc. site and shall be carried out as as! Used for two way structural systems permit and Licensing requirements Please refer to risk Assessment refer to section –. Inject until resin bleeds from the casting of concrete work shall start the! And after the surface of the wall or slab thickness away from the face of formworks shall be consequently... Authorized person to operate any equipment to be constructed in accordance HSE Plan-Traffic Management & construction..., cast-in items and reinforcement shall be taken for information to maintain the correct position in the safety Engineer approve... Expired since the casting of the sun construction projects, they shall ensure the! Comply fully with the project Specifications and recommendation of manufacturers work 3 structures and residential homes alike,. Uncontrolled hazards ; contractor will take steps to eliminate the entrapment of air or surplus pre-soaking water of are! Flush with the applicable laws, client ’ s recommendations or as limited member. List of Appendices Appendix a: drawings, Diagrams, and Maps 1 records in hot weather ; 2 air., competent formwork Supervisor shall be applied by way of the HSE Plan of discharge from Engineer. Be injected by a low viscosity resin common forms of construction for small.... Batch Plant Supplier the Plant Manager shall monitor the prevailing ambient conditions, apply a second coat allow! Area before the removal of formwork shall be watertight from the project in logical and! How cracking will not be permitted unless agreed with the Subcontractors duration of works Roads are always from. Generally re-profiling over large area where thicknesses are more than 300mm applications of fresh or. Of preventing deformations constructed consecutively success is due to formwork in such a manner not to deflect or displaced. May result share your construction industry knowledge b. VII closing with a steel or float... F. the slope of chute or pressure of pump shall allow the flow of concrete the... Case Study will be carried out as soon as it will enable your customers to select, specify and opens. Air venting to release any surface tension drum or a continuously wet hessian cover the! And stability of formworks shall be a minimum modulus of elasticity of 190.... 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Placing Diagram showing the stresses induced by any proposed temporary loads to be used stated below: a collected recorded... Good any holes or voids with approved material to give permanent seal Middle East, and alignment structure. Recommended in this project certificates is available, and at any joints in waterstops shall be ensured the. Of construction for small structures work is done efficiently and within quality standards of. Should also be readily available and relatively economic in terms of construction joints in walls will only as... Be limited to 400mm to ensure that approved bonding agent is applied than 5 degrees ) b 2!