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  2. Rizal Commercial Banking Corporation - Wikipedia

    en.wikipedia.org/wiki/Rizal_Commercial_Banking...

    The bank was established by Alfonso Yuchengco on September 23, 1960, as Rizal Development Bank, a small development bank in Rizal province. [13] It was later upgraded to a commercial bank upon the approval of the Bangko Sentral ng Pilipinas and, in 1963, began operation as such under its present name Rizal Commercial Banking Corporation (RCBC).

  3. Grading (earthworks) - Wikipedia

    en.wikipedia.org/wiki/Grading_(earthworks)

    Section through railway track and foundation showing the sub-grade. Grading in civil engineering and landscape architectural construction is the work of ensuring a level base, or one with a specified slope, [1] for a construction work such as a foundation, the base course for a road or a railway, or landscape and garden improvements, or surface drainage.

  4. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    Effluent sewer systems, also called septic tank effluent drainage (STED) or solids-free sewer (SFS) systems, have septic tanks that collect sewage from residences and businesses, and the effluent that comes out of the tank is sent to either a centralized sewage treatment plant or a distributed treatment system for further treatment. Most of the ...

  5. Soil gradation - Wikipedia

    en.wikipedia.org/wiki/Soil_Gradation

    A poorly graded soil will have better drainage than a well graded soil, [2] if it is not high in clay quality. Soil is graded as either well graded or poorly graded. [ 3 ] Soil gradation is determined by analyzing the results of a sieve analysis [ 4 ] [ 5 ] or a hydrometer analysis .

  6. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    For such drainage systems to work properly it is crucial that neutral air pressure be maintained within all pipes, allowing free gravity flow of water and sewage through drains. It is critical that a sufficient fall gradient (downward slope) be maintained throughout the drain pipes to keep liquids and entrained solids flowing freely from a ...

  7. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    the design drain spacing (L) can be found from the equation in dependence of the drain depth (Dd) and drain radius (r). Drainage criteria One would not want the water table to be too shallow to avoid crop yield depression nor too deep to avoid drought conditions. This is a subject of drainage research.

  8. Permeable paving - Wikipedia

    en.wikipedia.org/wiki/Permeable_paving

    Unlike a full-depth porous asphalt pavement, OGFCs do not drain water to the base of a pavement. Instead, they allow water to infiltrate the top 3/4 to 1.5 inch of the pavement and then drain out to the side of the roadway. This can improve the friction characteristics of the road and reduce road spray. [27]

  9. RCBC - Wikipedia

    en.wikipedia.org/wiki/RCBC

    Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. RCBC may refer to: Rizal Commercial Banking ...