Concrete repair | PPT

 — 17. Repair Methodology:1. Remove all distressed concrete from the affected structural area and a minimum of 20 mm behind the steel reinforcement.2. Sand blast substrate to remove loose concrete and to remove the corrosion in the steel.3. Reinforcement which has lost more than 15% of its cross sectional area shall be …

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History of the CP Road Map

 — The Long-Term Plan for Concrete Pavement Research and Technology (CP Road Map) was an innovative program developed and jointly implemented by the concrete pavement stakeholder community. The CP Road Map concluded in 2019, but its impact on concrete pavement research and technology transfer has been substantial.

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Geopolymer concrete ppt | PPT

 — 32. • Resistance against aggressive environment -used in constructing marine structures -in OPC white layer of crystals formed on acid exposed surface -in GPC there is no gypsum deposition and no visible cracks -a soft and powdery layer formed during early stages of exposure which later becomes harder -mass loss on exposure to …

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CONSTRUCTION OF ROADS | PPT

 — It provides details on the materials, design principles, properties, and construction procedures for various pavement types. These include earthen roads, gravel roads, water bound macadam roads, and cement concrete roads. The key components, types of joints, and construction methods for cement concrete pavements are also …

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Concrete- types, testing & properties | PPT

 — 8. MIXING • Objective of mixing is to make concrete mass homogenous & uniform in colour & conistency. • Either by hand or mixer. Hand mixing Small jobs On an impervious floor 10 % of cement is added more to the mix Machine mixing Important & quality works Batch mixers & continuous mixers Batch mixers produce batch by batch …

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PPT

 — Estimating Concrete Construction and Material Cost. Concrete weights and measures. A. One sack of cement = 94 pounds or one cubic foot B. One gallon of water = 8.3 pound C. 7.5 gallons of water = 1 cubic foot D. One cubic yard = 27 cubic feet Slideshow 669932 by devi

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Types of Concrete | PDF

 — 3. Disadvantages: • Only drawback of lightweight concrete is that the depth of carbonation i.e. the depth within which corrosion can occur under suitable conditions. It is nearly twice than that of normal concrete. Hence, special care will have to be taken to provide sufficient cover to the reinforcement of the lightweight structures to grant …

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Australia Stages World's First-Ever 'Green Concrete Road' …

 — Sydney, Australia's most populous city, is conducting the world's first-ever 'green' concrete trial to construct roads using reprocessed industrial waste from coal-fired power stations and steel manufacturing—an initiative that can lower the pollution and greenhouse gases emitted during the production of concrete for laying roads.. Wyndham …

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The Structure of Concrete

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A POWERPOINT PRESENTAION ON READY-MIX CONCRETE | PPT …

 — A POWERPOINT PRESENTAION ON READY-MIX CONCRETE - Download as a PDF or view online for free. Submit Search. ... Furthermore, access roads and site access have to be able to carry the greater weight of the ready- mix truck plus load. (Green concrete is approx. 2.5 tone per m³.) This problem can be overcome by utilizing so …

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PRESENTATION ON CONCRETE | PPT

 — 7. LIME CONCRETE The concrete consisting of lime, fine aggregates, and coarse aggregates mixed in a suitable proportions with water is called lime concrete. In this type of concrete hydraulic lime is generally used as a binding material, sand and cinder are used as fine aggregates and broken bricks, gravel can be used as coarse aggregates.

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PPT – UNIT 4. HIGHWAY CONSTRUCTION MATERIALS, …

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Highway construction or Road work | PPT

 — Bituminous or blacktop road 4. Cement concrete road 11. Earth road WBM road Bituminous road Cement concrete road 12. Construction material Embankment Subgrade Pavement structure base course Surface course Special material for drainage Maintenance 13. Minerals used : Cement Aggregates Water

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PPT

 — Cracks in Concrete . Cracks in Concrete 1-lntroduction 2-Classifications 3-Concrete removal, preparation 4-References. 1-lntroduction the concrete cracks are caused due to many reasons as repeated thermal cycle, accidental overloading, drying shrinkage, inadequate design or construction, or some other causes . This seminar is to provide …

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The Future is Bright with Concrete Roads!

 — The Concrete Initiative published the article entitled "The Future is Bright with Concrete Roads" by Karl Downey, Secretary General European Concrete Paving Association (EUPAVE).. Concrete can provide both the surface layer of roads—which vehicles ride on directly—as well as the base layers. Concrete pavements have been …

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