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Core - Civil Engineering

    Chapter 4

    Introduction to Concrete

    4.1 : Concrete01:20

    4.1 : Concrete

    Concrete is a commonly used structural material in the construction of buildings, bridges, airfields, highways, dams, and silos. Concrete is produced by ...

    316 views
    4.2 : Portland Cement01:21

    4.2 : Portland Cement

    Portland cement, the binding ingredient in concrete, is produced from calcareous materials, rich in lime and argillaceous materials, containing silica, ...

    205 views
    4.3 : Hydration of Cement01:24

    4.3 : Hydration of Cement

    Hydration of cement begins when water is added to cement particles. In the presence of water, the anhydrous cement compounds initially dissociate, ...

    198 views
    4.4 : Strength and Heat of Hydration01:29

    4.4 : Strength and Heat of Hydration

    The reaction of cement with water to produce hydration products releases heat, known as the heat of hydration. Initially, heat generation is rapid due to ...

    212 views
    4.5 : Fineness of Cement01:15

    4.5 : Fineness of Cement

    The size distribution curve of cement indicates its fineness by showing the proportion of particles of varying sizes. The curve rises steeply, indicating ...

    118 views
    4.6 : Setting Time of Cement01:12

    4.6 : Setting Time of Cement

    The setting time of cement is the time taken for the cement paste to change from a plastic state to a rigid state, and it is determined using a Vicat ...

    145 views
    4.7 : Soundness of Cement01:17

    4.7 : Soundness of Cement

    Occasionally, after the cement paste sets, the free lime, magnesia, and calcium sulfate may hydrate, causing a destructive expansion in the hardened ...

    145 views
    4.8 : Strength of Cement01:20

    4.8 : Strength of Cement

    The ability of cement to resist compressive forces is known as its compressive strength, while its ability to endure bending forces is referred to as its ...

    124 views
    4.9 : Types of Cement I01:21

    4.9 : Types of Cement I

    Consider a section of a busy highway that is damaged and requires urgent repair to minimize traffic disruption. Such repair work uses rapid hardening ...

    102 views
    4.10 : Types of Cement II01:22

    4.10 : Types of Cement II

    Intergrinding Portland cement clinker with granulated blast-furnace slag, a by-product of the iron-making process, produces slag cement. It can be used to ...

    93 views
    4.11 : Pozzolans01:21

    4.11 : Pozzolans

    Portland cement is sometimes interground or blended with pozzolans, which are siliceous and aluminous materials. The finely divided pozzolans, in the ...

    101 views
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