The home page from the Texas Department of Transportation links to information about TxDOT, Transportation Commission, doing business with TxDOT, contract information, consumer protection, employment opportunities, Kid's Page, legislation, Major Investment Studies, public transportation, news releases, recycling, road conditions, statistics, State Infrastructure Bank, motor carrier ...

TRL is an independent, internationally recognised centre of excellence in surface transport issues. For more than 60 years TRL has worked closely with customers in the public, private and independent sectors of the UK and world-wide. The organisation provides research based technical help which enables customers to obtain improved value for money, generate competitive advantage and a better ...

We provide numerical modelling software and services for mining and pavement engineering. We develop and support the CIRCLY and APSDS pavement design packages. Our consulting business specialises in advanced numerical stress analysis for mining rock mechanics.

Pavenet is the centre for Pavement Engineering news and information. Includes the Pavenet Bookshop, Jobs Board and Calendar.

Cool Pavements Click here for the Benefits of Cool Pavements Dark materials absorb more heat from the sun--as anyone who has worn a black t-shirt on a sunny day knows. Black surfaces in the sun can become up to 70F (40C) hotter than the most reflective white surfaces. Roads and parking lots are frequently paved with black asphalt concrete (commonly called asphalt ) and other dark materials that ...

Concrete Deterioration and Testing; Observations, Comments & Opinions By Wendell Dubberke Old Retired DOT Geologist and Farmer Last Edit 03/31/1999 ASTM C666 Durability Test Duggan Test Method Alkali-Silica Reaction (ASR) Alkali-Carbonate Reaction (ACR) Delayed Ettringite Formation (DEF) Fly Ash & Granulated Blast Furnace Slag use in PCC Plasticizers, Water Reducers And Retarders Cement Clinker ...