The URL can be used to link to this page

Home My WebLink AboutR-386402z w 1510 D 0 v F- 0 z 4- 0 0 _0 0 cJ i cn n i 0 E 0 c - n 0 0 U) 0 n 0 k n I- E 0- �t- co LO 0 N �i co POIFKM HOT IuNX ASPHALT (PHMA) NOTES SOURCE: 2015 POROUS PAVEMENT UNIFIED SPEC. COMMITTEE: PROPOSED FINAL SPECIAL PROVISION POROUS HOT MIX ASPHALT POROUS NOT MIX ASPHALT DESCRIPTION SECTION 5-04.1 IS SUPPLEMENTED WITH THE FOLLOWING: THIS WORK SHALL CONSIST OF PROVIDING AND PLACING ONE OR MORE LAYERS OF PLANT -MIXED POROUS HOT MIX ASPHALT (PHMA) ON A PREPARED FOUNDATION OR BASE IN ACCORDANCE WITH THESE SPECIFICATIONS AND THE LINES, GRADES, THICKNESSES AND TYPICAL CROSS-SECTIONS SHOWN IN THE PLANS OR ESTABLISHED BY THE ENGINEER. THE MANUFACTURE OF PHMA MAY INCLUDE POROUS WARM MIX ASPHALT (PWMA) PROCESSES IN ACCORDANCE WITH THESE SPECIFICATIONS. PWMA PROCESSES INCLUDE ORGANIC ADDITIVES, CHEMICAL ADDITIVES, AND FOAMING. HMA SHALL BE COMPOSED OF ASPHALT BINDER AND MINERAL MATERIALS AS MAY BE REQUIRED, MIXED IN THE PROPORTIONS SPECIFIED TO PROVIDE A HOMOGENEOUS, STABLE, AND WORKABLE MIXTURE. WORK SHALL ALSO INCLUDE PREPARATION AND PROTECTION OF SUBGRADE, SUBBASE AND LEVELING COURSE SPECIFIC TO PHMA. MATERIALS SECTIONS 5-04.2 IS SUPPLEMENTED WITH THE FOLLOWING: AGGREGATE GRADATION: SIEVE SIZE % PASSING 3/4" 100 Y2" 90-100 3/8" 55-90 U.S. NO. 4 10-40 U.S. NO. 8 0-20 U.S. NO. 40 0-13 U.S. NO. 200 0-5 THE AGGREGATE SHOULD CONSIST OF CRUSHED STONE WITH A PERCENT FRACTURE GREATER THAN 90% ON TWO FACES ON THE NO. 4 SIEVE AND ABOVE, WHEN TESTED IN ACCORDANCE WITH THE FIELD OPERATING PROCEDURES FOR AASHTO T 335. RECYCLED ASPHALT PAVEMENT SHALL NOT BE USED IN PHMA. MIXED DESIGNS FOR PHMA SHALL BE SUBMITTED TO THE PROJECT ENGINEER ON WASHINGTON STATE DOT FORM 350-042 WITH THE ADDITIONAL PHMA TEST DATA REQUIRED BY THIS SPECIFICATION PROVIDED AS A ONE PAGE SUPPLEMENTAL ATTACHMENT. THE ANTI -STRIPPING REQUIREMENTS FOR PHMA SHALL BE EQUIVALENT TO THE ANTI -STRIPPING REQUIREMENT FOR SAME MAXIMUM NOMINAL AGGREGATE CLASS OF DENSE GRADED HMA DESIGN FROM THE SAME AGGREGATE MATERIALS SOURCE. CONSTRUCTM REQUIREMENTS SECTION 5-04.3 IS SUPPLEMENTED WITH THE FOLLOWING: 5-04.3(1) NOT MDC ASPHALT MIXING PLANT THIS SECTION IS SUPPLEMENTED WITH THE FOLLOWING PLANTS USED FOR PREPARATION OF HMA AND PHMA SHALL CONFORM TO THE FOLLOWING REQUIREMENTS: FSER SUPPLY SYSTEM WHEN FIBER STABILIZING ADDITIVES ARE USED FOR PHMA (IF NEEDED TO ACHIEVE THE DRAIN DOWN SPECIFICATION), A SEPARATE FEED SYSTEM THAT MEETS THE FOLLOWING WILL BE REQUIRED: ACCURATELY PROPORTIONS BY WEIGHT THE REQUIRED QUANTITY INTO THE MIXTURE IN SUCH A MANNER THAT UNIFORM DISTRIBUTION WILL BE OBTAINED. THE FIBERS SHALL BE UNIFORMLY DISTRIBUTED PRIOR TO THE INJECTIONS OF THE ASPHALT BINDER INTO THE MIXTURE. WHEN A CONTINUOUS OR DRIER -DRUM TYPE PLANT IS USED, THE FIBER SHALL BE ADDED TO THE AGGREGATE AND UNIFORMLY DISPERSED PRIOR TO THE INJECTION OF ASPHALT BINDER. SURGE AND STORAGE SYSTEMS THE STORAGE TIME FOR PHMA MIXTURES NOT HAULED IMMEDIATELY TO THE PROJECT SHALL BE NO MORE THAN FOUR (4) HOURS FOR NON -INSULATED SILOS OR EIGHT (8) HOURS FOR INSULATED SILOS. PLACEMENT TEMPERATURE SPECIFICATIONS SHALL STILL BE MET REGARDLESS OF SILO STORAGE TIME. HAULING EQUVWNT SECTION 5-04.3(2) THE TEMPERATURE OF THE MIX AT THE TIME OF DISCHARGE FROM THE HAUL VEHICLE SHALL BE WITHIN THE TEMPERATURE RANGE IDENTIFIED IN THE APPROVED PHMA. (SEE ENGINEER'S NOTE 1). A MIX DESIGN SECTION 5-04.3(7)A IS SUPPLEMENTED WITH THE FOLLOWING FOR POROUS HMA: THE ASPHALT BINDER FOR PHMA SHALL BE PG 70-22ER POLYMER MODIFIED OR HIGHER GRADE. BINDER CONTENT SHALL BE BETWEEN 6.0% AND 7.0% BY TOTAL WEIGHT OF THE MIX, AND WILL BE THE HIGHEST PERCENTAGE THAT PASSES BOTH THE DRAIN DOWN AND VOID REQUIREMENTS TESTS AT NDESIGN=75 GYRATIONS. THE BINDER CONTENT TOLERANCE SHALL BE + OR -.5% DURING PRODUCTION/PLACEMENT OF THE PHMA. THE CONTRACTOR SHALL ADJUST THE AGGREGATE TO MEET THE MAXIMUM DRAIN DOWN TEST REQUIREMENTS WITHIN THE RANGES PROVIDED IN SECTION 9-03.8. • DRAIN DOWN SHALL BE 0.3%, MAXIMUM, ACCORDING TO ASTM D6390-05. • VOID RATIO SHALL BE 16% TO 25% PER ASTM D3203 AT NDESIGH=75 GYRATIONS. THE CONTRACTOR SHALL INCLUDE IN THE SUBMITTAL LETTER FROM THE POLYMER -MODIFIED ASPHALT SUPPLIER THE RECOMMENDED MIXING, DELIVERY, AND COMPACTION TEMPERATURES. THE CONTRACTOR SHALL DETERMINE ANTI -STRIP REQUIREMENTS FOR PHMA AND PROVIDE DATA FOR ANTI -STRIPPING. THE ASPHALTIC MIX SHALL BE TESTED FOR ITS RESISTANCE TO STRIPPING BY WATER IN ACCORDANCE WITH ASTM D-3625. IF THE ESTIMATED COATING AREA IS NOT ABOVE 95 PERCENT, ANTI -STRIPPING AGENTS SHALL BE ADDED TO THE ASPHALT. CONTRACTOR SHALL BE RESPONSIBLE FOR CONDUCTING THE ANTI -STRIPPING EVALUATION AND PROVIDING A REPORT TO THE ENGINEER. AS SPECIFIED IN 5-04.2 (ABOVE), ANTI -STRIP EVALUATION OF AN EXISTING DENSE GRADED HMA OF THE SAME MAXIMUM NOMINAL AGGREGATE CLASS CAN BE USED AS THE BASIS FOR ANTI -STRIP DOSAGE RATES. ACCEPTANCE SAMPLING AND TESTING - HMA MIXTURE SECTION 5-04.3(8)A IS SUPPLEMENTED WITH THE FOLLOWING: COMMERCIAL EVALUATION WILL BE THE BASIS FOR ACCEPTANCE OF PHMA. SPREADING AND FINISHING SECTION 5-04.3(9) IS SUPPLEMENTED WITH THE FOLLOWING: PLACEMENT TEMPERATURE OF THE MIXTURE SHALL BE WITHIN THE TEMPERATURE RANGE IDENTIFIED IN THE APPROVED PHMA SUBMITTAL. (SEE ENGINEER'S NOTES 2. BELOW) COMPACTION SECTION 5-04.3(10)A IS SUPPLEMENTED WITH THE FOLLOWING FOR PHMA: PNEUMATIC TIRE ROLLERS SHALL NOT BE USED. THE CONTRACTOR WILL DEVELOP A ROLLER PATTERN THAT WILL INITIALLY CONSOLIDATE THE PAVEMENT STRUCTURE AS WELL AS TARGET 15% TO 18% FINAL AIR VOIDS (82% TO 85% OF MAXIMUM THEORETICAL (RICE) DENSITY). THE CONTRACTOR SHALL MONITOR COMPACTION DURING PLACEMENT OF PHMA WITH A PAVEMENT DENSITY GAGE. (SEE ENGINEER'S NOTE 3. BELOW) POROUS ASPHALT (PHMA) ACCEPTANCE INFILTRATION TEST SECTION 5-04.3(21), AND SECTION 5-04.3(10)A IS ADDED: CONTRACTOR SHALL CONDUCT INFILTRATION TESTS ON THE FINISHED PHMA PER ASTM C1701 AT LOCATIONS CHOSEN BY THE ENGINEER. NEWLY -PLACED PHMA SHOULD BE ABLE TO ACCOMMODATE A MINIMUM INFILTRATION RATE OF 100 INCHES/HOUR. IT IS ANTICIPATED THAT INFILTRATION TESTS BE COMPLETED EVERY 150 LINEAR FEET OF ROADWAY AND CONDUCTED IN ACCORDANCE WITH ASTM C1701. IF THE MEASURED INFILTRATION RATE IS LESS THAN 100 INCHES/HOUR, CONDUCT ADDITIONAL FOUR ADDITIONAL TESTS AS FOLLOWS IN LINE WITH THE PAVER DIRECTION OF TRAVEL. TWO TESTS UPSTREAM AND TWO TEST DOWNSTREAM OF THE INITIAL TEST LOCATIONS SHALL BE TAKEN AT DISTANCES OF 20 FEET AND 40 FEET. RESULTS OF THE ADDITIONAL TESTS SHOULD BE AVERAGED. CONDUCT ADDITIONAL TESTING UPSTREAM AND DOWNSTREAM TO IDENTIFY AREA TO BE REMOVED. IF THE AVEAGE INFILTRATION IS LESS THAN REQUIRED REMOVE AND REPLACE AT THE DIRECTION OF THE ENGINEER AND AT NO COST TO THE OWNER. MEASUREMENT SECTION 5-04.4 IS SUPPLEMENTED WITH THE FOLLOWING: PHMA PG 70-22 ER (OR HIGHER) SHALL BE MEASURED BY THE TON IN ACCORDANCE WITH SECTION 1-09.2, WITH NO DEDUCTION BEING MADE FOR THE WEIGHT OF ASPHALT BINDER, BLENDING SAND, MINERAL FILLER, OR ANY OTHER COMPONENT OF THE HMA. IF THE CONTRACTOR ELECTS TO REMOVE AND REPLACE MIX AS ALLOWED IN SECTION 5-04.3(11), THE MATERIAL REMOVED WILL NOT BE MEASURED. PAYMENT SECTION 5-04.5 IS SUPPLEMENTED WITH THE FOLLOWING: "POROUS HMA CL. Y2" IN. PG 70-22ER", PER TON THE UNIT CONTRACT PRICE PER TON FOR "POROUS HMA CL. '/2 IN. PG 70-22ER" SHALL BE FULL COMPENSATION FOR ALL COSTS, INCLUDING ANTI -STRIPPING ADDITIVE, INCURRED TO CARRY OUT REQUIREMENTS OF SECTION 5-04 EXCEPT FOR THOSE COSTS INCLUDED IN OTHER ITEMS WHICH ARE INCLUDED IN THIS SUBSECTION AND WHICH ARE INCLUDED IN THE PROPOSAL. AGGREGATE DISCHARGE SUBBASE / PERMEABLE BALLAST NOTES SECTION 9-03.9(2)A. PERMEABLE BALLAST SHALL BE MANUFACTURED FROM LEDGE ROCK, TALUS, OR GRAVEL IN ACCORDANCE WITH THE PROVISIONS OF SECTION 3-01. RECYCLED CONCRETE IS NOT PERMITTED. THE MATERIALS SHALL BE UNIFORM IN QUALITY AND SUBSTANTIALLY FREE FROM WOOD ROOTS, BARK, AND OTHER EXTRANEOUS MATERIAL AND SHALL MEET THE FOLLOWING QUALITY TEST REQUIREMENTS: LOS ANGELES WEAR, 500 REV 30% MAX., WSDOT TEST METHOD T 96 DEGRADATION FACTOR 30 MIN., WSDOT TEST METHOD T 113 MIN. VOID RATION CONTENT: 30% AS DETERMINED BY AASHTO T19 OR ASTM C29, RODDING PROCEDURE THE GRADING REQUIREMENTS ARE 2" 90-100 1-1 /2" 35-70 1" 0-15 '/2" 0-5 NO. 100 0-3 % FRACTURE: 95 ALL PERCENTAGE ARE BY WEIGHT. NOTES AGGREGATES SHALL MEET THE REQUIREMENTS FOR GRADING AND QUALITY WHEN PLACED IN HAULING VEHICLES FOR DELIVERY TO THE SITE, AFTER PLACEMENT IN TEMPORARY, STOCKPILES ON SITE, DURING INSTALLATION, AND AFTER INSTALLATION AND COMPACTED TO PROJECT SPECIFICATIONS. PERMEABLE BALLAST MATERIAL MAY BE CONDITIONALLY APPROVED BASED ON CONTRACTOR SUBMITTED SAMPLED MATERIALS PRIOR TO DELIVERY TO THE SITE. FINAL ACCEPTANCE WILL BE BASED ON CONFORMANCE TESTING COMPLETED ON MATERIAL THAT HAS BEEN DELIVERED, INSTALLED, AND COMPACTED ON SITE. THE EXACT POINT OF ACCEPTANCE WILL BE DETERMINED BY TH ENGINEER. MATERIAL OUT OF CONFORMANCE WITH THE PROJECT SPECIFICATIONS WILL BE REMOVED AND REPLACED AT THE CONTRACTOR'S EXPENSE. ACCEPTANCE OF AGGREGATE SHALL BE AS PROVIDED UNDER NONSTATISTICAL OR COMMERCIAL EVALUATONS. THE CONTRACTOR'S SUBMITTAL FOR THE AGGREGATE MATERIAL SHALL PROVIDE DESCRIPTION OF SAMPLING METHODOLOGY, IDENTIFY WHERE AND HOW THE SAMPLE WAS COLLECTED, TOTAL WEIGHT OF SAMPLED COLLECTED, DESCRIPTION OF SAMPLE PREPARATION PROCEDURES, TOTAL WEIGHT OF SAMPLE SIEVED TO DETERMINE GRAIN SIZE DISTRIBUTION, AND TEST RESULTS. SAMPLING AND PREPARATION SHALL BE IN CONFORMANCE WITH ASTM D75 AND ASTM C702. CHOKER COURSE / CRUD SURFACING SECTION 9-03.9(A) CRUSHED SURFACING CHOKER COURSE SHALL MEET THE GRADING AND QUALITY REQUIREMENTS OF THE AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANPORTATION OFFICIALS (AASHTO) NO. 57. RECYCLED CONCRETE IS NOT PERMITTED. THIS MATERIAL SHALL CONSISTS OF CLEAN Y TO 1-1/2 INCH UNIFORMLY GRADED CRUSHED SURFACING MATERIAL. LOS ANGELES WEAR, 500 REV 30% MAX., WSDOT TEST METHOD T 96 DEGRADATION FACTOR 30 MIN., WSDOT TEST METHOD T 113 MIN. VOID RATION CONTENT: 30% AS DETERMINED BY AASHTO T19 OR ASTM C29, RODDING PROCEDURE THE GRADING REQUIREMENTS ARE: SIEVE SIZE 1-1/2" 1" 1/2" NO.4 NO. 8 % FRACTURE: 90-100 25-60 0-10 0-5 95 ALL PERCENTAGE ARE BY WEIGHT. AGGREGATES SHALL MEET THE REQUIREMENTS FOR GRADING AND QUALITY WHEN PLACED IN HAULING VEHICLES FOR DELIVERY TO THE SITE, AFTER PLACEMENT IN TEMPORARY, STOCKPILES ON SITE, DURING INSTALLATION, AND AFTER INSTALLATION AND COMPACTED TO PROJECT SPECIFICATIONS. PERMEABLE BALLAST MATERIAL MAY BE CONDITIONALLY APPROVED BASED ON CONTRACTOR SUBMITTED SAMPLED MATERIALS PRIOR TO DELIVERY TO THE SITE. FINAL ACCEPTANCE WILL BE BASED ON CONFORMANCE TESTING COMPLETED ON MATERIAL THAT HAS BEEN DELIVERED, INSTALLED, AND COMPACTED ON SITE. THE EXACT POINT OF ACCEPTANCE WILL BE DETERMINED BY TH ENGINEER. MATERIAL OUT OF CONFORMANCE WITH THE PROJECT SPECIFICATIONS WILL BE REMOVED AND REPLACED AT THE CONTRACTOR'S EXPENSE. ACCEPTANCE OF AGGREGATE SHALL BE AS PROVIDED UNDER NONSTATISTICAL OR COMMERCIAL EVALUATONS. THE CONTRACTOR'S SUBMITTAL FOR THE AGGREGATE MATERIAL SHALL PROVIDE DESCRIPTION OF SAMPLING METHODOLOGY, IDENTIFY WHERE AND HOW THE SAMPLE WAS COLLECTED, TOTAL WEIGHT OF SAMPLED COLLECTED, DESCRIPTION OF SAMPLE PREPARATION PROCEDURES, TOTAL WEIGHT OF SAMPLE SIEVED TO DETERMINE GRAIN SIZE DISTRIBUTION, AND TEST RESULTS. SAMPLING AND PREPARATION SHALL BE IN CONFORMANCE WITH ASTM D75 AND ASTM C702. 1. A TYPICAL TEMPERATURE RANGE WOULD BE 250-275 DEGREE F FOR WARM MIX ASPHALT (WMA) OR 275-300 DEGREE F FOR HOT MIX ASPHALT (HMA). 2. TYPICAL TEMPERATURE RANGE WOULD BE 225-25OF FOR PWMA AND 250-275F FOR PHMA. 3. PRIOR SUCCESSFUL PROJECTS HAVE INCORPORATED TWO INITIAL LOW AMPLITUDE VIBRATORY ROLLER PASSES TO SEAT AND ORIENT THE PHMA AGGREGATE MATRIX FOLLOWED BY STATIC ROLLING TO CREATE A FINAL SURFACE WITHOUT ROLLER MARKS. 4. THE USE OF WARM MIX ASPHALT TECHNOLOGY IS ENCOURAGED AS IT MINIMIZES ISSUES RELATED TO ASPHALT DRAIN DOWN DURING PRODUCTION, HAULING AND TESTING OF THE PHMA.. 1. CONTRACTOR SHALL PHASE THE WORK SO AS TO NOT COMPROMISE OR OVERLY COMPACT THE SUBGRADES PRIOR WHEN PERMEABLE PAVEMENT IS TO BE PLACED. 2. SUBGRADE SHALL BE COMPACTED TO 90-92% OF MAXIMUM DRY DENSITY ACCORDING TO STANDARD PROTOR (ASTM D698) AND SHALL BE FIRM AND UNYIELDING PRIOR TO PLACING PAVEMENT SECTION MATERIAL. 3. CONTRACTOR SHALL CONDUCT INFILTRATION TEST IN ACCORDANCE WITH CITY OF RENTON ADMENDMENTS TO 2009 KING COUNTY STORM WATER DESIGN MANUAL IMMEDIATELY FOLLOWING FINAL SUBGRADE PREPARATION TO VERIFTY THAT THE SUBGRADE IS NOT OVER -COMPACTED. INFILTRATION TEST SHALL BE CONDUCTED AT A RATE OF 1 TEST PER 5000 SQUARE FEET, AND 1 TEST PER 200 LINEAL FEET OF ROADWAY. ••V, V� ALrr •- _-• Job No6UKVtrtu: SCALE: H. A . CENTRAL ISLAND SHORT PLAT WA 988 9-10-2015 VERTICAL: NAVD 1 �� OF S1 DESIGNED: NONE HORIZONTAL. NAD 1983/1991 3413 NE 7TH STREET FIELDBOOK: H. H. PHAN CITY OF PAGE: RENTON, WA 980% Land Planning Civil Engineering DRAWN: RENTON N H . H . PHAN DATUM -' 5130 South 166th Lane �� ONE INCH 42815 CHECKED: Planning/Building/Public Works Dept. col SeaTac WA 98188 4 FULL SCALE �0,��, AGI ST'' ��svIF NOT ONE INCH FWA NOTES SHEET: OF: T (2%) 229-6422 S8IONA� APPROVED: SCALE ACCORDINGLY NO. REVISION BY DATE APPR 2 8 m c ! t77p1! { T 1*2/-- DATE: � � B. DATE: BY: DATE: BY: DATE: Job No6UKVtrtu: SCALE: H. A . CENTRAL ISLAND SHORT PLAT WA 988 9-10-2015 VERTICAL: NAVD 1 �� OF S1 DESIGNED: NONE HORIZONTAL. NAD 1983/1991 3413 NE 7TH STREET FIELDBOOK: H. H. PHAN CITY OF PAGE: RENTON, WA 980% Land Planning Civil Engineering DRAWN: RENTON N H . H . PHAN DATUM -' 5130 South 166th Lane �� ONE INCH 42815 CHECKED: Planning/Building/Public Works Dept. col SeaTac WA 98188 4 FULL SCALE �0,��, AGI ST'' ��svIF NOT ONE INCH FWA NOTES SHEET: OF: T (2%) 229-6422 S8IONA� APPROVED: SCALE ACCORDINGLY NO. REVISION BY DATE APPR 2 8 m c ! t77p1! { T O r_ 0 � r> I c ic zm- K Im 1 z m m O I D n OM C z C, m 130 cnm o D 9m r x_ m 'z m O D n rn z t:�t,j r_ 0 � r> r