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Asphalt Pavement Caltrans

Asphalt Pavement 2389 Gateway Oaks Suite# 200 Sacramento, CA 95833 The Office of Asphalt Pavements develops tools, standards, guidance, standard specifications, standard plans, and investigations for the following pavement engineering topics: Asphalt Pavements Economic Analysis for Pavements Traffic Impacts on Pavement Climate Impacts on Pavement

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Hot Mix Asphalt with Intelligent Compaction Caltrans

Proper compaction of hot mix asphalt is one of the most important process in construction of a long lasting pavement. Pavement materials must be compacted to optimum densities to ensure adequate support, stability, and strength—achieving these densities uniformly is the key to long lasting roadway performance.

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Welcome to Hot Mix Asphalt Concrete Page - California

About Hot Mix Asphalt Construction Every year, State of California invests millions of dollars in construction of hot mixed asphalt (HMA), previously known as Asphalt Concrete (AC), pavement. Producing high quality HMA pavement requires a good partnership between Caltrans, the plant producing the HMA material and the contractor placing the HMA.

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Chapter 4: Construction Details, Section 39: Asphalt Concrete

Section 39, “Asphalt Concrete,” of the Standard Specifications provides material and construction requirements for hot mix asphalt (HMA) including Type A, rubberized hot mix asphalt-gap graded (RHMA-G), open-graded friction course (OGFC), minor HMA, and hot mix asphalt with warm mix asphalt (WMA) additive technology.

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CSULB Caltrans - Joint Training Certification Program

To help reduce conflict and delay on construction projects within the state, Caltrans, in partnership with CSULB, has developed a series of joint training and certification programs. Participants in Hot Mix Asphalt II will receive training and certification in various AASHTO methods pertaining to HMA testing in the field.

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Flexible Pavement Construction Caltrans

Flexible Pavement Construction Common types of flexible pavement include hot mix asphalt (HMA), rubberized hot mix asphalt-gap graded (RHMA-G), and open graded friction course (OGFC). There are also two types of rubberized OGFC mixes: rubberized hot mix asphalt-open graded (RHMA-O) and RHMA-O-high-binder (RHMA-O-HB).

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CSULB Caltrans - Joint Training Certification Program

To help reduce conflict and delay on construction projects within the state, Caltrans, in partnership with CSULB, has developed a series of joint training and certification programs. Participants in Hot Mix Asphalt I will receive training and certification in various CTM and AASHTO methods pertaining to HMA testing in the field.

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Pavement Smoothness Caltrans

In 2019, Caltrans Pavement Program developed improved pavement smoothness specifications which provide incentives and disincentives for achieving pavement smoothness. Below are the spreadsheets used to determine applicable payment adjustments for both concrete and hot mix asphalt pavements. Additionally, there is an educational video and an ...

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Warm-Mix Asphalt Study: Summary Report on Warm

Warm mix asphalt (WMA) is a relatively new technology. It was developed in response to needs for reduced energy consumption and stack emissions during the production of asphalt concrete, improved workability and compaction after long hauls and when using lower placement temperatures, and better working conditions for plant and paving crews.

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Hot Mix Asphalt Asphalt Calculator Calculate Aggregate

2 天前  Overview Hot mix asphalt (HMA) pavement refers to the bound layers of a flexible pavement structure. Asphalt pavement material is a precisely engineered product composed of about 95 percent stone, sand, and gravel by weight, and about 5 percent asphalt cement, a petroleum product. Asphalt cement acts as the glue to hold the pavement together. Our HMA

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Graniterock: Major Changes in Hot Mix Asphalt: Caltrans

2015-3-18  In recent years the California Hot Mix Asphalt (HMA) industry has seen major changes in technology and state specifications. Warm mix asphalt, recycled asphalt pavement and anti-stripping agents have already been implemented, and the use of intelligent compaction and asphalt shingles are hitting the street soon. Further changes in specifications include a

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Graniterock: Hot Mix Asphalt

Hot Mix Asphalt. Graniterock materials have been used in the construction industry for over 100 years—an achievement unmatched by any other HMA producer. We produce highly stable and workable commercial mixes that

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Development of Hot Mix Asphalt Pavement Performance

2016-10-10  A hot mix asphalt (HMA) surface course containing a polymer-modified asphalt (PG 64-28PM), 15 percent ... Caltrans headquarters staff from the Office of Flexible Pavement (formerly the Division of Flexible Pavement) designed the structural pavement sections using material ... following construction, provide systematic and periodic pavement ...

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Caltrans use of scrap tires in asphalt rubber products: a

2014-2-1  Asphalt rubber products have been typically used in hot mix asphalt and spread applications (Caltrans 2003). In the rewrite of the Caltrans asphalt concrete specifications, the term “rubberized asphalt concrete (RAC)” has been changed to rubberized hot mix asphalt (RHMA) (Caltrans 2011). The rest of the paper uses RAC and RHMA interchangeably.

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Development of Hot Mix Asphalt Pavement Performance

2016-10-10  Development of Hot Mix Asphalt Pavement Performance Properties for Long-Life Pavement Design: Caltrans District 4, Interstate 80, Solano County, California Version 1 ... and to expedite construction, Caltrans selected the UCPRC to be the laboratory of record for HMA performance testing (shear, stiffness, fatigue, and HWTT tests) of the ...

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39 ASPHALT CONCRETE - US Forest Service

39-1.03 CONSTRUCTION Not Used 39-1.04 PAYMENT Not Used 39-2 HOT MIX ASPHALT 39-2.01 GENERAL 39-2.01A General 39-2.01A(1) Summary Section 39-2.01 includes general specifications for producing and placing hot mix asphalt. ... JMF verification on a Caltrans Hot Mix Asphalt Verification form, if applicable 3. JMF renewal on a Caltrans Job Mix ...

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SUBJECT: HOT MIX ASPHALT (HMA) MIXTURE DESIGN

2019-3-14  Compacted Hot Mix Asphalt (HMA) Using Saturated Surface-Dry Specimens. 19. AASHTO T 176 - Standard Method of Test for Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test. 20. AASHTO T 209 – Standard Method of Test for Theoretical Maximum Specific Gravity (Gmm) and Density of Hot Mix Asphalt (HMA). 21.

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Construction Training - California

2019-7-3  Caltrans > Business > Construction > Training > LCS Training . Lane Closure System (LCS) Web Based Training. Instructions. This training will take approximately one hour to complete. ... Hot Mix Asphalt Construction (HMA) Intelligent Compaction; Construction Districts; Contact Construction; Material Plant Quality Program; Related Links.

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Warm-Mix Asphalt Study: Summary Report on Warm

6. Warm-Mix Asphalt Study: Test Track Construction and First-Level Analysis of Phase 3b HVS and Laboratory Testing (Rubberized Asphalt, Mix Design #2) (UCPRC-RR-2011-03) 7. Warm-Mix Asphalt Study: Evaluation of Rubberized Hot- and Warm-Mix Asphalt with Respect to Binder Aging (UCPRC-RR-2013-02) 8.

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CiteSeerX — Hot Mix Asphalt 4-3901 General 4-3901 General

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Producing high-quality hot mix asphalt pavement requires a partnership between Caltrans, the plant producing the hot mix asphalt, and the contractor placing the hot mix asphalt. The resident engineer must clearly communicate assignments of responsibility and commensurate authority for all Caltrans

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Optimum Tack Rate for Hot-Mix Asphalt Bonding

2016-9-16  Construction of hot-mix asphalt (HMA) pavement involves spraying tack coat on an existing surface in order to promote an acceptable interlayer bond and to ensure that multiple pavement layers behave monolithically. ... In the late 1990s, Caltrans studied the performance of asphalt layers with and without a tack coat in a series of experiments ...

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Chapter 4 Construction Details - California

2018-9-27  4-3901A Warm Mix Asphalt 4-3901B Rubberized Hot Mix Asphalt . 4-3901C Paving Personnel 4-3901D Hot Mix Asphalt Quality Assurance . 4-3902 Before Work Begins . 4-3902A General . 4-3902B Job Mix Formula Submittal 4-3902C Job Mix Formula Review 4-3902D Job Mix Formula Verification . 4-3902D (1) General

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Construction Training - California

2019-7-3  Caltrans > Business > Construction > Training > LCS Training . Lane Closure System (LCS) Web Based Training. Instructions. This training will take approximately one hour to complete. ... Hot Mix Asphalt Construction (HMA) Intelligent Compaction; Construction Districts; Contact Construction; Material Plant Quality Program; Related Links.

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An increase in the use of Asphalt Rubber by Caltrans and

2017-3-31  2015 (copy attached). In that memo, Caltrans made Rubberized Hot Mix Asphalt the default hot mix paving product to be used on all Caltrans jobs. GHG Reduction Strategy #1 Implement a policy making Asphalt Rubber Chip Seals the default chip seal product, and requiring a specific justification if a different chip seal product is to be used. This

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SUBJECT: HOT MIX ASPHALT (HMA) MIXTURE DESIGN

2019-3-14  Compacted Hot Mix Asphalt (HMA) Using Saturated Surface-Dry Specimens. 19. AASHTO T 176 - Standard Method of Test for Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test. 20. AASHTO T 209 – Standard Method of Test for Theoretical Maximum Specific Gravity (Gmm) and Density of Hot Mix Asphalt (HMA). 21.

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Quality Control of Hot Mix Asphalt Review

2018-1-1  HMA from plant E had a specific gravity of 1.03, penetration of 65.00 mm, softening point of 51 oC, flash point of 239.00 oC, peak marshall stability of 18.26 kN, flow of 3.67 mm and voids in ...

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Chapter 4 Construction Details - Pennsylvania State

4-3901B Hot Mix Asphalt Construction Processes : Hot mix asphalt may be placed using the standard, method, or Quality Control ; Quality Assurance (QCQA) process. The process is specified in the project’s special : provisions. The processes are related to the level of quality control testing required ; for the project.

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PPT - Hot Mix Asphalt Production PowerPoint

2010-12-13  1973 Views Download Presentation. Hot Mix Asphalt Production Chris Lange PMP, Pr.Tech. (Eng) Director (Technical) Much Asphalt (Pty) Ltd Road Pavement Forum: 10 th April 2006 Hot Mix Asphalt Production Plant

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EVALUATION OF HOT MIX ASPHALT (HMA) LIFT

Proper compaction of hot mix asphalt (HMA) mixture is vital to ensuring that a stable and durable pavement is constructed. For typical dense-graded HMA mixes, numerous studies have shown that initial in-place air voids should not be below approximately 3 percent or above approximately 8 percent. Low in-place air voids can

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