Paving areas

Other paved areas Secondary water treatment—deionization, demineralization, pH and... 

Drainage patterns should minimize pooling of runoff near equipment and prevent drainage from unpaved areas from entering floor drain inlets in paved areas. 

Outer edges of paved areas and ridge (high point) lines for each drainage zone area should be at a constant elevation. 

The preferred slope should be V4 in per ft (2%) for paved areas including around pumps and other areas where leaks are anticipated. For example, the preferred differential elevation from any ridge line to a drain inlet should be 6 in (15 cm) for a 50 ft (4.6 m ) area and 9 in (23 cm) for a 75 ft (7 m ) area. 

The preliminary layouts should include all equipment and buildings, show paved areas and roads, and identify on-site requirements. 

The square is located in the centre of Edinburgh within the university complex. It comprises of a slightly sloping paved area of approximately 20 metres square surrounded by wide ascending steps creating an arena effect. There are five entrances to the square, but apart from this it is a relatively enclosed space. In the south-west corner of the square stands a monument (see Fig. 1). 

Acid areas which collect corrosive process wastes are usually provided with an acid-resistant, curbed paving to confine and collect any acid drainage or spillage within these curbed areas. Curbed and paved areas should be provided in locations where pump groups, storage and handling areas are subject to spillage and wash-down water. 

Storm-water runoff is calculated on the basis of 100% runoff for all paved areas and 50% runoff for unpaved areas. The remaining 50% in the unpaved areas is assumed to be absorbed into the ground. 

Plot Plan Layout Aid. The plot plan will be a major aid in the design and layout of the various sewer systems. It will indicate the locations of all the various pumps, exchangers, tanks and towers. It will also indicate the extent of paved areas, roadways, undei ound utilities (water and electric) and the locations and inverts of the various sewer tie-ins to the sewer mains at the battery limits. 

Paved areas and unpaved areas outside should have a sewer box or catch basin for each surface... 

Catch basins in paved areas should be flush with the paving. In unpaved areas the top of the catch basin should be 2 inches above grade. 

Storm water accumulation runoff should be calculated in inches of rainfall, based on 100% runoff for all paved areas and 50% runoff for the unpaved areas. Storm water for each inch of rainfall per hour, per square foot equals 0.0104 gpm. 

BS 594, Part 1 Hot rolled asphalt for roads and other paved areas — Specification for constituent materials and asphalt mixtures , 1992. 

H7. An aircraft on the ground comes too close to moving objects or collides with stationary objects or leaves the paved area. 

Cut-back and fluxed bituminous binders are suitable for use in the construction and maintenance of roads, airfields and other paved areas. The bitumen used may be paving grade bitumen (in most cases) or by addition of polymer. 

High-modulus asphalts (HiMAs) are bituminous materials with high stiffness modulus, high resistance to rutting, good spreading ability and good durability. They are used only for base or binder courses in roads, airfields or other paved areas. 

BS 598-110.1996. Sampling and examination of bituminous mixtures for roads and other paved areas, Part 110 Methods of test for the determination of wheel-tracking rate. London British Standards Institution. 

Park on a paved area rather than on grass, or cover an area with crushed stones or gravel to use for parking to save the grass. 

Rainwater that has fallen on the units, pumping stations and loading stations, paved areas that can cover up to 10 ha. 

Rainwater that has fallen on the refinery outside of the paved areas. Considerable flows can be involved ... 

Here is where the oily water from paved areas, oily rainwater, desulfurized spent caustic and stripped condensates from the "East" unit (FCC, alkylation, visbreaker) are channeled. Downstream from this system the blowdown from "West" cooling towers is added. The total average flow is 120 to 130 m h k... 

The effluents from the north of the plant (FCC, paved areas, etc.) and from the lube oil complex undergo preliminary two-stage oil removal (CPI and API) before they are pumped to the general storage tank. 

For example, the runoff rate for a paved area can be calculated with the following data ... 

In paved areas with a high ccmcentration of equipment, the allowable area per catch basin should not exceed 3,000 sq ft (270 sq in). When praaical, these areas are arranged to collect drainage from common equipment. Catch basins are located as required, provided that the difference between the long and the short diagonal cricket line is no greater than 2 to 1. 

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