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Category : Concrete

Concrete is a mixture of cement, sand, coarse aggregates and water. The properties of concrete such as performance, strength, and durability, their types such as high strength, prestressed, fresh, hard, Ready mix, SCC, thier special types are discussed here.

CORROSION POTENTIAL ASSESSMENT

1. Cover meter survey The necessity to provide adequate cover thickness to control corrosion needs no emphasis. A cover thickness survey is useful to determine existing cover thickness in a specified location, where a damage has been identified and elsewhere, for ...

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PENETRATION RESISTANCE TEST ON CONCRETE

Penetration resistance tests on concrete offers a means of determining relative strengths of concrete in the same structure or relative strength of different structures. Because of nature of equipments, it can not and should not be expected to yield absolute values ...

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PRESTRESSED CONCRETE DESIGN- BOOK

Download the book on PRESTRESSED CONCRETE DESIGN chapter wise and topic wise. 1 – Introduction Introduction Advantages and Types of Prestressing Pre-tensioning Systems and Devices Post-tensioning Systems and Devices Concrete (Part I) Concrete (Part II) Prestressing ...

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CONCRETE WORKABILITY FOR DIFFERENT CONDITIONS

Workability Requirements for Different Concrete Placement: Requirement of concrete workability varies with different types of construction. Workability of concrete is decided by design engineers based on concrete strength requirements, durability requirements and ease of construction at site. For a construction with use ...

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SOUNDNESS OF CEMENT

AIM To determine the soundness of cement by the Le-chatelier method   APPARATUSLe- chatelier mouldThe mould consist of a small split cylinder of spring brass or other suitable metal of 0.5mm thickness forming of a mould 30mm internal diameter and 30mm height ...

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STACKED LOG CONSTRUCTION

Log houses originated in Europe where they were hastily erected as hunting cabins. Stacked log homes today are elaborate structures worth several hundred thousand dollars in some cases. Coniferous trees are ideal for constructing stacked log houses are the timber ...

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PAPERCRETE

  PaperCrete is essentially a type of industrial strength paper maché made with paper and cardboard, sand and Portland cement. There are many varieties of PaperCrete possible. Essentially, the constituents when mixed in different proportions result in PaperCrete of varying properties. ...

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TESTS ON HARDENED CONCRETE

Properties of Hardened ConcreteEarly volume change Creep Properties Permeability Stress-Strain RelationI. Early Volume Change (Shrinkage) What is the problem? >> May result in cracking Plastic Shrinkage Due to water loss from fresh paste by evaporation or from suction by dry surfaceVolume decrease ...

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