Caltrans To Use Fast-Setting Concrete

New fast-setting concrete that sets in four hours instead of two to three days helps Caltrans reduce traffic problems due to construction.

1 minute read

July 21, 2000, 8:10 AM PDT

By Abhijeet Chavan @http://twitter.com/legalaidtech


Caltrans will use a new fast-setting concrete for a $6 million rehabilitation project on Interstate 680 between Walnut Creek and Dublin in California. The concrete sets in four hours instead of two to three days and willhelp reduce traffic problems due to construction. The new concrete is not more durable or stronger but is three to five timesmore expensive than conventional concrete.

Thanks to Abhijeet Chavan

Friday, July 21, 2000 in Contra Costa Times-Walnut Creek

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Aerial view of town of Wailuku in Maui, Hawaii with mountains in background against cloudy sunset sky.

Maui's Vacation Rental Debate Turns Ugly

Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

July 1, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

July 2, 2025 - Diana Ionescu

White and purple sign for Slow Street in San Francisco, California with people crossing crosswalk.

San Francisco Suspends Traffic Calming Amidst Record Deaths

Citing “a challenging fiscal landscape,” the city will cease the program on the heels of 42 traffic deaths, including 24 pedestrians.

July 1, 2025 - KQED

"Altadena - Not For Sale" yard sign in front of burned down house after Eaton Fire in Altadena, California in January 2025.

Half of Post-Fire Altadena Home Sales Were to Corporations

Large investors are quietly buying up dozens of properties in Altadena, California, where a devastating wildfire destroyed more than 6,000 homes in January.

July 7 - Dwell

Dense multistory residential buildings in hilly San Francisco, California.

Opinion: What San Francisco’s Proposed ‘Family Zoning’ Could Really Mean

Mayor Lurie is using ‘family zoning’ to encourage denser development and upzoning — but could the concept actually foster community and more human-scale public spaces?

July 7 - The San Francisco Standard

Blue self-driving Ford Transit van shuttle in Jacksonville, Florida.

Jacksonville Launches First Autonomous Transit Shuttle in US

A fleet of 14 fully autonomous vehicles will serve a 3.5-mile downtown Jacksonville route with 12 stops.

July 7 - Smart Cities Dive

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Associate/Senior Planner

Gallatin County Department of Planning & Community Development

Senior Planner

Heyer Gruel & Associates PA