Porous asphalt choker course
The choker course (aka bedding course) is designed to interlock large stone reservoir aggregates and provide a smooth and stable platform for PA placement. Table 2 shows four projects with choker thickness and combinations of aggregates used for the choker and stone reservoir course. The typical … See more The types of subgrade soil greatly affect the performance of PAPs in cold regions, although PAPs have been successfully implemented in most soil types, including clays with low … See more The geosynthetic material, such as geotextile fabric, geogrid, and geomembrane, are placed individually or jointly between native soils (subgrade soil and/or excavated soil) … See more The asphalt treated permeable base (ATPB) is a viable bedding course to substantially increase the structural loading capacity and … See more The aggregate used for the stone reservoir course shall be selected to fulfill the hydrologic and structural requirements to retain the stormwater runoff and support traffic loads. The … See more WebAug 11, 2010 · Next is a 6-1/2-inch layer of C-33 sand, then 7 inches of 1-1/2-inch minus gravel (No. 3 aggregate), a 2-inch choker course of three-quarter-inch minus rock (No. 67 …
Porous asphalt choker course
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WebPorous. Porous asphalt pavements allow for land development plans that are more thoughtful, harmonious with natural processes, and sustainable. They conserve water, … WebA stabilizing course or "choker course” consisting of a clean single-size crushed stone smaller than the stone in the recharge bed to stabilize the surface for paving equipment. …
WebIf AASHTO No. 3 is used for the storage bed, then AASHTO No. 57 is acceptable for the choker course. Porous asphalt shall be transported in covered, clean dump beds that … WebSep 7, 2024 · Each contained three main courses (as shown in Table 1), including a 10 cm-thick surface of porous asphalt with a void ratio of 22%, a 10 cm-thick choker course of Large Stone Porous Asphalt Mixture (LSPM) that has a 23% void content, which sits above a 40 cm-thick base reservoir of 13.2 cm crushed limestone gravel with 35% void space.
Webthe porous asphalt excavation and not to be used on the bottom of the system unless needed for structural reasons. 2. Material for the choker course and reservoir course shall … Web4. POROUS ASPHALT Lower concentration of fines Voids more than 20% Polymers and/or fibers can be used Mixed at a standard asphalt plant “recharge bed” built of stones 4. 5. …
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WebAug 27, 2013 · Porous Pavements and LID in Puyallup. Slide 70 WSU Puyallup Technical Workshop Series-Permeable Paving Design May 17, 2011. Porous Pavements and LID in Puyallup. Slide 71 WSU Puyallup Technical Workshop Series-Permeable Paving Design May 17, 2011. Porous Pavements and LID in Puyallup. Recent/Future Projects • Neighborhood … gracepoint baptist church sturgis miWebJul 28, 2016 · Choker base course aggregate for infiltration bed shall have the following or comparable gradation (AASHTO size number 57): ... This work consists of the construction of a porous asphalt wearing course mixture (porous asphalt). The work shall be in accordance with these specifications and shall conform to the lines, grades, thicknesses, … chillis indian south woodham ferrersWebchoker course, reservoir course gradation, max. wash loss, min. durability index, max. abrasion loss, air voids (reservoir course) filter course gradation, permeability/ sat. … chillis indian west bridgfordWebChoker Course: Also called “stabilizing course.” This thin layer helps to stabilize the surface for asphalt to be applied. Open-Graded Asphalt: The pavement layer is made up of interconnected voids that allow the free flow of stormwater right through it. We provide porous asphalt as part of our green paving solutions! chilli shredded beef recipeWebPorous Pavement Page 3 of 4 Porous Asphalt Porous Concrete Design Factors (continued) Choker Course The choker course beneath pervious asphalt or concrete pavement consists of 3/4” to 1/4” clean, crushed drain rock, minimum 2” depth. Aggregate Base The base course consists of clean, crushed 3/4” to 2” uniformly graded aggregate. chillis indian derryWebJul 26, 2024 · The quality of materials incorporated into SCDOT construction projects is essential in the acceptance and overall quality of the final product. Materials are assessed … gracepoint baptist church magnolia texasWebChoker Course •Place “Choker” course – ½” clean washed aggregate – Creates a stable paving platform – Typically 1 – 2” thick – Grade and compact Static Vibratory if using low … gracepoint baptist church magnolia tx