Related Experiment Video

Updated: Jul 10, 2026

Detecting the Water-soluble Chloride Distribution of Cement Paste in a High-precision Way
07:42

Detecting the Water-soluble Chloride Distribution of Cement Paste in a High-precision Way

Published on: November 21, 2017

PHYSICAL EXAMINATION OF EMPLOYEES ENGAGED IN THE MANUFACTURE OF PORTLAND CEMENT

G E Tucker

    American Journal of Public Health (New York, N.Y. : 1912)
    |June 1, 1915
    PubMed
    Summary

    No abstract available in PubMed .

    More Related Videos

    Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence06:27

    Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence

    Published on: September 23, 2018

    Sandy Soil Improvement through Microbially Induced Calcite Precipitation (MICP) by Immersion06:27

    Sandy Soil Improvement through Microbially Induced Calcite Precipitation (MICP) by Immersion

    Published on: September 12, 2019

    Related Concept Videos

    Portland Cement01:21

    Portland Cement

    Portland cement is the essential binding ingredient in concrete, made from finely ground materials including lime, iron, silica, and alumina. Lime is derived primarily from limestone, marble, marl, seashells, and clays, which also supply iron and alumina, while silica is sourced from sand, chalk, and bauxite. Contemporary manufacturing of Portland cement is a significant source of carbon dioxide emissions, prompting research into reducing its content in concrete through alternative...
    Strength of Cement01:20

    Strength of Cement

    Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
    For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in ASTM C...
    Fineness of Cement01:15

    Fineness of Cement

    The fineness of cement directly influences the rate of hydration, as the hydration begins at the surface of the cement particles. In addition to hydration, the fineness of cement is vital for various properties of concrete including workability, gypsum requirement, and long-term behavior. The fineness of cement is represented in terms of the specific surface of cement which is typically measured in square meters per kilogram, with several methods available for this determination.
    Direct...
    Types of Cement II01:22

    Types of Cement II

    Portland blast-furnace cement is made by blending Portland cement clinker with granulated blast-furnace slag, which accounts for 25 to 65 percent of the cement's weight. Despite its similarities to ordinary Portland (Type I) cement in terms of fineness and setting times, its early strength is lower, though it achieves comparable strength later on. It's particularly suited for mass concrete structures and marine environments due to its lower heat of hydration and superior sulfate resistance.
    Soundness of Cement01:17

    Soundness of Cement

    The soundness of cement refers to the ability of cement paste to retain its volume after setting. Unsound cement can lead to expansion and structural damage due to the presence of free lime, magnesia, and calcium sulfate. Free lime hydrates very slowly, expanding and causing unsoundness, which is difficult to detect because it intercrystallizes with other compounds. Magnesia also reacts with water, forming crystals that can disrupt the cement's structure. Calcium sulfate can create ettringite,...
    Types of Cement I01:21

    Types of Cement I

    Portland cement comes in several types, each with distinct properties and applications based on their chemical composition and hydration characteristics:
    Type I (Ordinary Portland Cement) is widely used for general construction where special properties are not required. It has moderate sulfate resistance and heat of hydration.
    Type II (Modified Cement) offers moderate resistance to sulfate attack and a lower rate of heat development compared to Type I. It is suitable for structures in...