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  2. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    The steel shuttering pinches the top surface of a concrete slab due to the weight of the next slab being constructed. Concrete slabs, block walls and pipelines are susceptible to cracking during ground settlement, seismic tremors or other sources of vibration, and also from expansion and contraction during adverse temperature changes.

  3. Stain removal - Wikipedia

    en.wikipedia.org/wiki/Stain_removal

    Another factor in stain removal is the fact that stains can sometimes comprise two separate staining agents, which require separate forms of removal. A machine oil stain could also contain traces of metal, for example. [1] Also of concern is the color of the material that is stained. Some stain removal agents will not only dissolve the stain ...

  4. How to Remove Oil Stains From a Garage Floor - AOL

    www.aol.com/news/diy-how-remove-oil-stains...

    If you keep your car in the garage, chances are you'll see a few oil stains on the garage floor before long. If you want to keep your garage clean, and How to Remove Oil Stains From a Garage Floor

  5. How to Clean Salt Stains Off Your Floors (and Keep Them from ...

    www.aol.com/lifestyle/clean-salt-stains-off...

    Lighter Side. Medicare. new

  6. Environmental impact of concrete - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Concrete has a total embodied energy of 1.69 GJ/tonne, lower per unit mass than most common building materials besides wood. However, concrete structures often have high masses, so this comparison is not always directly relevant to decision making. Additionally, this value is based only on mix proportions of up to 20% fly ash.

  7. Alkali–silica reaction - Wikipedia

    en.wikipedia.org/wiki/Alkali–silica_reaction

    ASTM C1293: "Test Method for Concrete Aggregates by Determination of Length Change of Concrete Due to Alkali-Silica Reaction". It is a long-term confirmation test (1 or 2 years) at 38 °C in a water-saturated moist atmosphere (inside a thermostated oven) with concrete prisms containing the aggregates to be characterised mixed with a high-alkali ...