MDOT Hot Mix Asphalt (HMA) Percent Within Limits (PWL

SUPERPAVE HOT MIX ASPHALT PERCENT WITHIN LIMITS CFS:KPK 1 of 302930301 of 29 APPR:CJB:DBP:11-02-1507-15-16 FHWA APPR:11-02-1500-00-16 a. Description. This special provision sets forth the quality control (QC) and quality assurance (QA) procedures that will be followed for acceptance of and payment for Superpave Hot Mix Asphalt (HMA).

Materi als Testing Consultants has been providing pavement management and testing services on hundreds of MDOT local agency projects for many years. Along with services like asphalt engineering and surface evaluation, one of the services provided is the hot mix asphalt (HMA) mixture verification testing.. The purpose of the test is to verify the correct amount of asphalt cement and the

Method D in Special Provision Section 403 - Hot Mix Asphalt, one sample will be taken from the paver hopper or the truck body per 250 ton, per pay item, per day paving occurs. The mix will be tested for gradation and PGAB content. Disputes will not be allowed. If the mix is within the tolerances listed in Table 9, below the Department will

National Research Council, Washington, D.C. 2005. 1.71.1 General Sholar et al. provides a description of test data and methods used for the development for a percent within limits (PWL) specification for construction quality control of dense- graded hot mix asphalt HMA and open graded friction courses (OGFC) in Florida.

Additionally, our laboratory has consistently participated in MDOT’s Hot Mixed Asphalt (HMA) Round-Robin tests. TYME maintains a quality assurance plan and review process on every project, including Percent Within Limits (PWL) and Non-PWL associated construction contract items.

its method of payment for hot mix asphalt (HMA) from their current QC procedures to one reliant upon compliance within statistical tolerance limits. This latter method, called Percent Within Limits (PWL), reimburses contractors as a function of how closely the mean and standard deviation of five (5) sublot samples collected from a lot of HMA

SECTION 402 - HOT MIX ASPHALT (HMA) PAVEMENTS 402-1 DESCRIPTION. These specifications apply to all plant mixed Hot Mix Asphalt (HMA) produced at a production facility under Section 401 Plant Production, irrespective of aggregate gradation, type, and amount of HMA material or use.

I also conducted 29 one-day Percent-Within-Limits (PWL) workshops in 26 states for state and local government representatives. Awards I have received various awards related to my long term support of the Pavement and Materials Program from the Federal Highway Administration.

Transportation (MDOT) Standard Specifications for Construction and the MDOT Frequently Used Special Provision 12SP501(J). Milling: Milling shall be completed for butt joints (appr ox. 3") at roads, HMA driveways, railroad crossings and bridge decks, at the locations specified. Milling for butt joints shall be included in mainline paving.

Fundamentals of Percent Within Limits and Quality Control–Quality Assurance Compaction Specifications. Most state highway agencies (SHAs) are using statistically based quality control/quality assurance (QC/QA) specifications for hot-mix asphalt (HMA) construction.

the actual quality of a lot (in terms of percent within specification limits, PWL) and the probability of its acceptance. This aspect has been addressed in the literature for highway materials [1, 2, 3], as well by the investigators at earlier studies for the acceptance of asphalt mixtures [4, 5], granular aggregate base, GAB, [6],

Jul 26,  · The MDOT plant inspector should follow the sampling and testing procedures explained in the Special Provision 12SP501(U) Superpave Hot Mix Asphalt Percent Within Limits (PWL) or 12SP501(V) Superpave Hot Mix Asphalt Percent Within Limits (PWL) For Capital Preventive Maintenance (CPM) Mill & Resurface Projects and CPM One Course Overlay Projects.

for hot mix asphalt (HMA) construction from their current procedure to a Percent Within Limits (PWL) specification. Quality characteristics are percent asphalt content (%AC), percent laboratory compacted air voids (%AV) and percent roadway density (%RD). As the PWL methodology is new to both ODOT and

method, its "quality measure of choice," Percent Within Limits (PWL), to measure the quality of pavement material on all hot-mix asphalt (HMA) projects. "We wanted to increase the consistency in our paving materials," says Scott Schram, bituminous engineer at the Iowa DOT. PWL specifications date back to the 1950s, when

the pay factor for a hot-mix asphalt (HMA) mixture on Pay for Performance (PFP) project. HMA materials specified to be sampled and tested for percent within limits payment adjustment (voids, VMA, and in-place density) and dust/AC adjustments will be evaluated for acceptance in accordance with this document.

tance of hot-mix asphalt. As part of the ERS phase-in plan for hot mix, the specification for pavement compaction was introduced to the indus­ try with the intent for full implementation by 1995. The acceptance procedure employs a percent-within-limits specification using the lot

pecification limits utilized in percent within limits (PWL) specifications are developed by highway agencies, and used to determine the percent of hot-mix asphalt “Lot” within specified limits

Special Provision for Hot-Mix Asphalt – Pay for Performance Using Percent W ithin Limits – Jobsite Sampling . July 25, . This special provision was developed by the Bureau of Materials and Physical Research to provide a method of constructing HMA pavements utilizing pay adjustments based on percent within limits statistical calculations.

The Oklahoma Department of Transportation (ODOT) is considering switching its method of payment for hot mix asphalt (HMA) construction from their current procedure to a Percent Within Limits (PWL

MDOT Manuals amp Guides April 28th, - Michigan Department of Transportation Manuals amp Guides Hot Mix Asphalt HMA Percent Within Limits PWL and Single Test Acceptance STA Worksheets' 'Freediving Wikipedia April 29th, - Freediving free diving free diving breath hold diving or skin diving is a

Apr 01,  · Current limiting behavior in three-phase transformer-type SFCLs using an iron core according to variety of fault. NASA Astrophysics Data System (ADS) Cho, Yong-Sun; Jung, Byung-Ik

plant, plus a 9.5mm "fine" mix @ 50 gyrations for shimming and where required, a non-RAP design for bridge decks. The Department shall then have 15 calendar days in which to process a new design before approval. The JMF shall establish a single percentage of aggregate passing each required sieve size within the limits shown in

PLANT PRODUCED HOT MIX ASPHALT 501.01. Description. This work consists of providing and placing Hot Mix Asphalt (HMA) mix using Superpave Mixture Design Methods. if less than 25 percent of the mix layer is within 4 inches of the surface, the mix layer is a base course. the maximum criteria limits

Percent Within Limits (PWL): The percentage of the lot falling above a lower specification the placement of 4,000 tons of hot-mix asphalt (HMA) or one days production for concrete Find the arithmetic mean or average for the asphalt content of six Superpave mix sublots given as: 5.4, 5.8, 6.2, 5.4, 5.4 and 6.0%.

HMA PRODUCTION MANUAL. February 2008. CONSTRUCTION AND TECHNOLOGY DIVISION FOREWORD. This manual is the combination of three separate Hot Mix Asphalt (HMA) manuals used in the design, production, testing of HMA for MDOT projects and a lab and technician qualification program. This manual consists of the following sections:

HMA – Hot-Mix Asphalt JMF – Job-Mix Formula PG – Performance Graded PTM – Pennsylvania Test Method PWL – Percent Within Limits RAP – Recycled Asphalt Pavement RAS – Recycled Asphalt Shingles (manufacturer waste) SGC – Superpave Gyratory Compactor VFA – Voids Filled with Asphalt VMA – Voids in Mineral Aggregate