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INTENDED FOR Technicians and Engineers who need a basic understanding or revision of concrete deterioration mechanisms, methods of diagnosis, and techniques for concrete repair. The course is intended as a stand alone course or can be combined with our course on Understanding Concrete, held the previous day, at the same venue. MAX PARTICIPANTS - 20 THE SPEAKER Eur Chem Michael Grantham BA CChem FRSC IEng MIQA AMICT Mike has worked for several of the major testing houses in a career spanning some 30 years. He has been involved in a considerable amount of testing work on bridges and other heavy structures such as; car parks, office buildings, multi-storey flats, down to small scale problems with prc housing. He lectures regularly for Thomas Telford Training on their courses. TARGET BENEFITS After the course, participants will have an understanding of deterioration mechanisms for concrete, methods for diagnosis of these problems, including some of the newer techniques such as linear polarisation, radar, infra red thermography etc. They will understand how these techniques are applied in diagnosis, how concrete repairs can effectively deal with the problems, and, for bridge engineers, methods of testing both conventional and post tensioned and prestressed bridges, including the latest remote monitoring techniques.
All delegates will be given a certificate of attendance. Full and detailed course notes, with photographs and illustrations are provided on CD-ROM (80+ pages). CONCRETE FOR ENGINEERS AND CONTRACTORS INTENDED FOR Technicians and Engineers who need a basic understanding or revision of concrete and its properties. The course is intended as a stand alone course or can be combined with our course on Diagnosis Inspection Testing and Repair of Concrete Structures held on the following day. MAX PARTICIPANTS - 15 THE SPEAKER Tony Binns- Spent the early part of his career producing, supervising and dealing with Quality Control, before joining the staff of the C&CA’s training centre. With them, he lectured for 14 years on concrete materials topics including mix design and ready mixed concrete. Tony then spent two years with a major civil engineering contractor and now runs his own training company running courses in the UK and overseas. TARGET BENEFITS After the course, participants will have an understanding of the fundamental properties of concrete and those of the mix ingredients, including admixtures and reinforcement. Some concrete defects are introduced (with this theme developed on the second day for those taking the 2 day course). Participants will also understand how concrete is specified using British Standards. They will also understand the steps that are taken when non-conformity of the concrete occurs.
Module 0A half-day course for site operatives and technicians in the control of concrete on site. Programme Procuring concrete Day-to-day ordering of ready-mixed concrete from site Receiving concrete on site Inspecting ready-mixed concrete before discharge What to watch for The new rules regarding conformity testing Identity testing: what it means Composite samples and Spot samples How to obtain a representative sample of fresh concreteHow to do a slump test to BS EN 12350-2 How to make test cubes to BS EN 12390-2 Looking after test cubes Questions and answers Course close. MODULE W.O. TESTING FRESH CONCRETE ON SITE A half-day training workshop Programme 1030 Arrival and introduction to Classroom Session Aims and objectives of the course Health and safety - cement burns - manual handling of heavy objects Apparatus for sampling and testing fresh concrete Methods for sampling fresh concrete on site Standard technique for testing the consistence of concrete by slump test Compacting concrete test cubes Referencing test cubes Storing test cubes Demoulding test cubes Curing test cubes Preparing test cubes for transit to laboratories 1230 Lunch 1315 Practical Workshop Session - sampling and testing fresh concrete Individual assessments Multiple-choice quiz: Sampling and Testing Fresh Concrete Final discussion, questions and answers 1530 Afternoon tea, course close and depart. Module 1 CONCRETE TECHNOLOGY AND BEST CONSTRUCTION PRACTICE A one-day course for construction managers and site supervisors in the control of concrete.ProgrammeFresh concrete Consistence requirements: Getting the right slump and getting the slump right Checking cohesion: Problems of segregation, honeycombing, bleeding and reinforcement ripple Concrete as an engineering material Concrete schedules: Strength, water/cement ratio, minimum cement content and slump Concrete strength: The meaning of C40/50 etc Durability and how it is achieved: Resistance to cracking, abrasion, freezing Placing and compacting concrete on site: The myth of over-vibration Correct use of poker vibrators and beam vibrators Curing: What it means and why it matters Accepting readymix concrete on site - What to watch for: slump, uniformity, appearance - What not to sign for: time limitations, adding water to concrete on site Sampling and testing fresh concrete - Slump test, cube making, storing and curing cubes - What to do when the cubes fail Action plan Questions, answers and final discussion. Module 2A two-day course for foremen and site engineers in the control of concrete on site.ProgrammeDAY 1 Review of concrete properties Strength grades The trouble with water/cement ratio ConsistenceCohesion, segregation and bleedingDurabilityMaterials updateCementitious materialsProperties of blended cementsAggregates including “fines”Admixtures, Additives and AdditionsConcrete faults (1) Construction defects Blow holes Honeycombing Grout loss Scour Water runs & sand streaks Laboratory practical exercise: Trial mixes Effect of changing the water/cement ratio Slump testing Flowing/self-compacting concrete Air content Cube making and curing Demonstration – Cube testing Concrete faults (2) Non-structural cracking Thermal cracking Plastic cracking Plastic settlement Plastic shrinkage Drying Shrinkage Overnight syndicate project: Early-age cracking. DAY 2Syndicate reports Outline of concrete types Nominal mixes Prescribed concretes Standardized prescribed concretes Designed concretes Designated concretes Proprietary concretes Durability criteria Concretes for specific applicationsSelecting appropriate workability levels Watertight construction High quality surface finishes
Supervision of concrete construction (1)Procurement of concrete Checking and testing What to do if the slump is wrong Transporting concrete Supervision of concrete construction (2) Compaction Over-vibration Under-vibration Secondary vibrationCuring Conformity criteria (1)Interpretation of test results Evaluating test resultsComparing yesterday’s trial mixesConformity criteria (2)Action on non-conformityContractor-specific topics Questions, answers and final discussion. Module 4A four-day course for project leaders and site engineers in the control of concrete. ProgrammeMONDAY Arrival, registration and lunch Review of concrete materials, composition and properties. Cements Pulverized-Fuel Ash Ground Granulated Blastfurnace Sllag Silica fume Aggregates Admixtures Mixing water including reclaimed water Free water/cement ratio. Concrete specification: BS 5328 / BS 8500 / SD1. Concrete Classes Types of concrete Air-entrainment and freeze/thaw resistance Sulfate resistance Overnight Project 1 – Specification and conformity TUESDAY Briefing for laboratory practical and travel to laboratory. Laboratory practical: Concrete mixes Use of admixtures Conformity and identity testing Consistence Air content Making and curing of test cubes Questions and discussion on concrete technology and quality control. Management of concrete on site (1) Transporting concrete on site. Management of concrete on site (2) Placing and compacting concrete Management of concrete on site (3) Reinforcement. Checking Scheduling Non-ferrous reinforcement. Overnight Project 2. WEDNESDAY Management of concrete on site (4) Curing. Management of concrete on site (5) Joints. Management of concrete on site (6) Falsework & formwork. Video - Formwork practice. Video and discussion: Pre-concreting checks. Making good and finishing new concrete. Video and discussion – Repairs. Overnight Project 3 - Non-structural cracks. THURSDAY Repairs to old concrete. Project reports. Discussion on construction management. Procuring concrete, identity testing, what to watch for Briefing for visit, travel to ready-mixed concrete depot. Visit to readymixed concrete batching plant. Order processing Plant, workforce and equipment Materials and mix design Shipping, production and delivery Quality control. Crushing cubes made earlier FRIDAY Strength development, maturity of concrete and striking times. Conformity criteria Action on non-conformity Final discussion and course close Lunch and depart. Copyright © 2010 GR TECHNOLOGIE LTD./CONCRETE WORKSHOPS INTERNATIONAL
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