SURFACE PREPARATION 4. Constro Facilitator. Title Method Statement for Precast Boundary Wall Works 2. The likelihood is classified as remote, occasional, and frequent (ranging from 1 to 3 respectively). End of preview. Cast-in-situ piles/foundation shall be accomplished as per the approved layout & drawing. High-strength, lightweight precast concrete is often used to build foundations and basements. Scope of Method Statement for Precast Concrete Fabrication and Installation. Mould joints shall be properly sealed to prevent any grout leak. Precast form slab will be placed on precast beam as per attached propping details &design. GENERAL 2. In case of horizontal stocking for some elements. The precast beam will be placed on the precast column as per the attached propping details &design. Moulds shall be rigid, even and flat in order to provide good quality surface finishes. METHOD STATEMENT CONSTRUCTION OF PRE-CAST. Ladders may be used in some conditions (ex-Grouting, etc.) Two additional projects comprising 6,000 units have started in . 1. This civil work method statement shall address the requirements of project site operations applicable for the supply and placing of structural and nonstructural concrete pouring on the construction work project. Test cube reports Design for Manufacturing and Assembly (DfMA) Advanced Precast Concrete System. This method statement aims to describe the procedure that will be adopted for the erection of Precast and Pre-stressed Concrete Elements. Inspection records, ie. Curing of kerb will be done by applying curing compound / or any other suitable method. Pre-pour inspection shall be done jointly between the client representative and precaster on the first casting or as required by the client. This makes it a perfect option for both residential and commercial jobs. The process includes detailed design, workshop drawings, Sequence of work, Quality Control System, Tolerances, Risk involved and risk controls, and Housekeeping, to be adopted during the erection of Precast and Pre-stressed Concrete Elements. The moulds will be thoroughly cleaned and an approved oil base releasing agent will be applied manually. Cast in-situ steel reinforcement shall be provided as per the approved steel reinforcement drawing. METHOD STATEMENT FOR PRECAST AND PRESTRESSED. Site Supervisor. 2. The concrete pile is driven into the ground together with a soil solidifying supply pipe and a cement slurry supply pipe. Work procedure 1. Demoulding of precast rc beam and slab shall commence only when the concrete have achieved the required design strength, ie. 8.3 Six concrete cubes shall be taken from each trial mix, 3 tested at the age of 7 days and. Purpose. 5.3 Grouting Preparation: 5.3.1 Before grouting pouring application starts, ensure that formwork and concrete surface shall be free from all kinds of dirt, dust, and debris and shall be vacuum clean and air blown. 1. Steps. The pile footing in the ground is formed with concrete formations around the contracted sections, thereby increasing the bearing . While management is developing a plant safety management plan, the risk assessment is conducted using the following five steps: The first step includes setting up a multidisciplinary task force. A Project Quality Plan (PQP) shall be prepared to ensure the products compliance to quality and standard required by the client. The industrialized process is an advantage that enables quick long-line production, standardized components, the calculated positioning of details, and uncomplicated documentation. The moulds for the fabrication of precast components shall be purpose made of steel. Compaction of concrete shall either be by poker and/or mould vibrators Curing of concrete is ambient curing only. TABLE OF CONTENTS 1. Suitable lifting devices/sling/equipment will be used for loading and off-loading the elements. Concrete shall be placed not later than one hour after the addition of the mixing water. This article is about Fabrication Method Statement for Precast Concrete Panels. Detailed description for all manufacturing processes starting from casting moulds preparation till the delivery of the product to job site. All the precast Precast/prestressed concrete Elements will be delivered to the site as per the sequence required to ensure continuous erection. 1ON/mm2 or as specified by the client. This is to be done at least 24 hours after the completion of concrete placing or a concrete surface retarder may be used. The PSC girder Bridge is completed by constructing the concrete deck on the top of PSC girders. Part 1: Management and control Principal Contractor: The name of the Contractor in charge of the site. Precast concrete is reinforced concrete constructed by industrialized methods. Make sure that before the erection of Precast & prestressed concrete (PPC) elements is started, the project surveyor will observe and verify by correct field measurements as per the drawing, location of bearing pads, M&E-related service accessories etc. Want to read all 6 pages? 2. Accordingly, workers are re-trained after a certain amount of time. The company shall implement and adhere to the policies stipulated in the OHSQ Management System in compliance to OHSAS 18001: 2007 and the procedure mentioned in the Occupational Health and Safety (OHS) PPC elements shall be lifted appropriately and safely from the lifting anchor provided. 4. Supplier shall provide Mill Certificates and Test reports for all their deliveries. Elements will be supported over the trailer by a special belt or steel chain fixed to the trailer. Inspection records, ie. All the surface of foundations will be covered by wet sack cloth to maintain this. Truck mixers for transporting concrete Hollow core Slabs will be placed on beam CIS retaining wall corbel as per the attached details & design. December 9, 2019. This is a rolling sequence. Level Guides shall be installed for the level maintenance of concrete. to download more health and safetyvarious documentssuch as risk assessments, method statements, safety inspection checklists, safety forms, proceduresand safety guidelines, keep visitingmy site at qhsedocuements: This method statement aims to describe the procedure that will be adopted for the erection of Precast and Pre-stressed Concrete Elements. The second step is to identify hazards. CONCRETE REMOVAL 3.1 Impacting method (for honeycombed and exposed re-bar) 3.2 Grinding (for abrupt or gradual irregular surfaces) 3.3 Cutting 3. By. As better quality control can be exercised in the factory or yard site, concrete of superior quality can be produced. 3.1 CM Construction Manager. Required fields are marked *. Only authorised-trained operatives will be permitted to drive any plant. Precast concrete is produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and lifted into place. Mould joints shall be properly sealed to prevent any grout leak. Moulds shall be rigid, even and flat in order to provide good quality surface finishes. It consists of large walls and floor concrete panels connected in the vertical and horizontal directions. Since stairs are cast at our facility using existing molds, they are very economical and our quality is always consistent. Precast construction method involves setting up of casting yard, production & stacking, transportation and erection of precast elements. Ensure the MEP clearance is obtained prior to start the concrete blinding works. 3) Fill up the holes with the approved chemical Hilti HIT-RE 500. Offloading and loading of panels should be done using a suitable mobile crane and elements shall be stacked in steel racks as per standards. The precast stairs are then set on the brackets and pads using a boom truck. Megawide is currently building six projects with precast elements, totaling around 12,000 units. Vertical and horizontal tolerances with respect to true line and level will be + 6mm. Materials test reports by either supplier / precaster 3m or under, 3mm. Forklifts We begin the process by learning more about the intended use of . Precasting reduces construction time because the manufacturing of the elements is carried out beforehand. The purpose of this civil work method statement is to define the procedure for the preparation and construction of Cast in Place Concrete Works for substructures in accordance with the requirements specified in the relevant specifications, procedures and drawings, considering safety and quality of the work activities. After completion of casting, enough number of workers must be available for the finishing works, cleaning and protection of the casted concrete. Moulds shall be rigid, even and flat in order to provide good quality surface finishes. The Client at its own discretion may visit the factories any-time before and during the production. All concrete elements are to be handled carefully and slowly to avoid damage during transit. The scope of this procedure covers the steps to be followed for the Fabrication and Installation of Precast Elements such as foundations, columns, beams, staircases and hollow core slab. After this step, they are asked to identify hazards in the plant. Mould Vibrators INVESTIGATION AND EVALUATION OF DAMAGED CONCRETE SURFACES 3. The mould stopper sides will be fabricated from steel channels and / or wooden timber, the mould dimension and details will be as per the latest approved shop drawings. SCOPE: Manufacturing the precast concrete element. The production of the precast components and other related activities shall be carried out at the factories. The manufacturing of precast components shall be executed based on the shop-drawings and specifications approved by the client. Repairs could be completed in line with the manufacturer's guidelines. All the concrete encased ducts installation shall be approved from the Engineer. Proper concrete cover will be considered using the plastic spacers. The maximum height of stacking should be observed to prevent toppling. This method statement describes the practices and methods to be used with regards to placing, curing and defect rectification of concrete works & blinding concrete. Overhead cranes Purpose and scope. This step decides and modifies the control measures. Although they are thinner and lighter, they provide more strength than a concrete blocks, and are more resistant than other types of walls to fire, termites, and dry rot. Typical sketch for lifting &erection of slab in attached Lifting and Erection drawings. METHOD STATEMENT ON THE REPAIR OF PRECAST BEAM DEFECTS, MISSING CAPPING LINKS AT PRECAST BEAM 2PT4-4a AND 2PT14 PROJECT: SENGKANG N4C3 PROCEDURE 1) Drill the required holes to a minimum depth 90 mm. method statements Safe Working Method Statements must be concise but informative and should contain the following information as a minimum. Also, make sure that this work method is essentially approved by the Consultant accordingly. Best Editable Construction QHSE Documentation Portal. Lifting shall be done under the supervision of certified Lifting Supervisor. Make sure that the grade of concrete strength shall be as per the project particularizations, recommendations, and requirements for the concrete superstructure. Quality Control is briefly mentioned in this methodology, for more details, refer to the following documents: ISO-QP-8.2.4 and GEN . And for the last step, the process will be implemented and imposed. The following equipments/machineries are used in the fabrication of precast concrete units. Advantages of precast concrete: Precast concrete has several advantages over cast-in-situ concrete: 1. . Crane will be used for loading and off-loading the Precast/prestressed concrete Segments. The freshly batched concrete as per approved concrete mix design is delivered from the Batch Planet to the production area in a Truck Mixer. Precast company client: The name of the sub-contractor/ client of precast company. Precast concrete steps are widely used for entrances to residential and . Post production and delivery inspection shall be carried out by precaster and to be approved by the client representative. A field survey and stakeout of the existing cast in situ dimensions will be performed to permit accurate placement of Precast/prestressed concrete elements. These pads are set slightly lower than the brackets so that the stairs are pitched forward for water run off. PPC Column alignment shall be done, and line, level, verticality, and straightness shall be kept as per the approved erection design and or layout. In case of lifting horizontally, a flatbed truck is used to transfer the panels to the stock area. Precast is a method of industrialized design, production and construction using precast concrete products. This step helps to promote general understanding between all departments. 3.2 PE/SE Project Engineer/Site Engineer Once delivered to site The aim of this method statement is to describe the process and sequence of erection of precast elements for the boundary wall in this project. (Note - this method statement has been developed using the site specific risk assessment, the designer's residual risk register and the Precast Flooring Federation's code of practice: 'For the safe erection of precast concrete flooring and associated components'.) The principle advantages of precast floors are speed of construction, absence of scaffolding, large variety of types, large span capacity, & economy. pre-pour and delivery inspection checklists, 2. The process includes detailed design, workshop drawings, Sequence of work, Quality Control System, Tolerances, Risk involved and risk controls, and Housekeeping, to be adopted during the erection . engineer using proposed plants and equipments and mixing method. Smoothing the concrete surface will be done using the hand trowel. The works will be carried. Moulds shall be rigid, even and flat in order to provide good quality surface finishes. If Precast/prestressed concrete Elements are stored at the site, they should be as close as possible to the crane to avoid double handling. This me t hod s t a t ement brie f ly de s cribes t he pro p o s ed me t hodology f or th e installa t ion o f piles u s ing long casing f or a Project. The Contract Unit Prices covering the supply and laying of pipes shall include the entire cost of furnishing the pipes and all materials for joints and lean concrete bedding if needed, the cost of all labor and equipment required for transporting, laying, jointing and bedding the pipes. Repairing works for any well-known defects in precast /prestressed concrete elements shall be accomplished using authorized restoration materials or any system-authorized fabric. Mould joints shall be properly sealed to prevent any grout leak. Why are non-linear accident models not used more often in workplace accident investigations? To ensure better compaction of concrete, the moulds if applicable, shall be fitted with mould vibrators. Quality concrete sheet piles on sale - you can find concrete sheet piles from the most reliable .