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  2. R-value (soils) - Wikipedia

    en.wikipedia.org/wiki/R-value_(soils)

    R-Value is used in pavement design, with the thickness of each layer dependent on the R-value of the layer below and the expected level of traffic loading, expressed as a Traffic Index. Details of the pavement design procedure are given in Chapter 600 of the California Highway Design Manual .

  3. Chemical plant cost indexes - Wikipedia

    en.wikipedia.org/wiki/Chemical_plant_cost_indexes

    Chemical Engineering Index, CE: composed of 4 major components – for equipment and other bulk items, the others relevant to construction labor, buildings, and engineering and supervision – the index is employed primary as a process plant construction index, was established using a base period of 1957-1959 as 100. The CE Index is updated ...

  4. Soil stockpile - Wikipedia

    en.wikipedia.org/wiki/Soil_Stockpile

    A soil stockpile is formed with excavated topsoil during the construction of buildings or infrastructure. It is considered to be an important resource in construction and ecology . [ 1 ] [ 2 ] Soil is stockpiled for later use in landscaping or restoration of the region following the removal of construction infrastructure. [ 3 ]

  5. Atterberg limits - Wikipedia

    en.wikipedia.org/wiki/Atterberg_limits

    The plasticity index is the size of the range of water contents where the soil exhibits plastic properties. The PI is the difference between the liquid and plastic limits (PI = LL-PL). Soils with a high PI tend to be clay, those with a lower PI tend to be silt, and those with a PI of 0 (non-plastic) tend to have little or no silt or clay.

  6. Earthworks (engineering) - Wikipedia

    en.wikipedia.org/wiki/Earthworks_(engineering)

    Earth moving equipment (c. 1922) Flattened and leveled construction site. Road roller in the background. Excavation may be classified by type of material: [1]: 13.1 Topsoil excavation; Earth excavation; Rock excavation; Muck excavation – this usually contains excess water and unsuitable soil

  7. Soil cement - Wikipedia

    en.wikipedia.org/wiki/Soil_cement

    Soil cement mixtures differs from Portland cement concrete in the amount of paste (cement-water mixture). While in Portland cement concretes, the paste coats all aggregate particles and binds them together, in soil cements the amount of cement is lower and therefore there are voids left, and the result is a cement matrix with nodules of ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Cone penetration test - Wikipedia

    en.wikipedia.org/wiki/Cone_penetration_test

    A CPT truck operated by the USGS. Symbol used in drawings Simplified version of a cone penetrometer.. The cone penetration or cone penetrometer test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy.

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