Commercial Retaining Walls

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Allan Block’s Seismic Strength Shakes the Quakes

Friday, September 16th, 2011

Allan Block Retaining Walls Have…

  • Over twenty years of experience and excellent performance in seismically active parts of the world.
  • Millions of units in the ground performing as designed.
  • Full scale field testing in Japan on a 8m tall wall.
  • The only segmental retaining wall company to have full scale seismic shake table testing in the world.
  • Pioneered a more accurate design methodology for applying seismic loading on segmental walls which has been accepted and published in the Design Manual for Segmental Walls,
    by the National Concrete Masonry Association (NCMA) and the US Federal Highways (FHWA).

    Click here to view this design methodology on
    Seismic Analysis for Allan Block Retaining Walls
    (part of the complete AB Engineering Manual).

  • For more on building retaining walls in seismic zones, check out our
    technical newsletter – Issue 6.

San Diego Jewish Academy

San Diego Jewish Academy: San Diego, CA

Fun Facts About Labor Day

Thursday, September 1st, 2011

  • It became a federal holiday in 1894.
  • Traditionally, Labor Day is celebrated by most Americans as the symbolic end of the summer.
  • Traditional celebrated the 1st Monday of September. Most people celebrate with picnics, parties, fireworks etc..
  • In high society, Labor Day is considered the last day of the year when it is fashionable for women to wear white.
  • In U.S. sports, Labor Day marks the beginning of the NFL and college football seasons.
  • Be Safe and Enjoy Your Labor Day Weekend!

Why Retaining Walls Fail – Reason # 3

Friday, July 8th, 2011

Did You Know…?

The #3 Reason for Retaining Wall Failures is Improper Grid Placement?

Follow project plans and specifications to make sure the length and placement of the grid is correct. Learn how to build a geogrid reinforced wall. And ALWAYS use the grid in the strongest direction, learn more here.

Grid Placement in Retaining Wall

Allan Block Technical Newsletter Issue 10

Wednesday, July 6th, 2011
Allan Block Technical Newsletter Issue 10 Allan Block and No-Fines – No Problem

Woodland Heights, a 30-unit townhome association built in the 1980’s, needed to replace its second timber wall. However, numerous site constraints did not allow enough clearance to install geogrid reinforcement within the property limits. Based on site constraints and project goals, Duffy Engineering and Associates called for the use of ‘No-Fines’ concrete backfill with an Allan Block AB Classic wall. Duffy utilized AB Walls 10 software’s alternative reinforcement option to design the wall and confirm that all safety factors were exceeded.

To read more on this story and other helpful information on No-Fines Concrete – Check out this issue of the Allan Block Technical Newsletter.

AB Fence Gets the Thumbs Up From SCDOT

Wednesday, June 29th, 2011

Allan Block Technical Newsletter Issue 9: AB FenceAs with any community that once considered themselves small, the community of Mount Pleasant, South Carolina has seen major population growth over the years. With this growth the traffic congestion and noise have continued to increase to a point that South Carolina Department of Transportation (SCDOT) traffic studies gave the US 17 corridor a ‘D’ Grade. This poor grade was only projected to get worse, forcing the SCDOT and the city to develop a plan to expand and upgrade the corridor.

The upgrade was not only to relieve traffic congestion but also to reduce the increasing noise problems to the surrounding residential neighborhood. Mount Pleasant had no sound walls anywhere in the city and for their first they wanted to set a high quality standard. The city chose the AB Fence System with the four block Ashlar Blend Pattern for its aesthetic quality, its performance in reducing noise and its competitive cost.

To read more on this story and other helpful information on AB Fence – Check out the Allan Block Technical newsletter.

For more information on Allan Block products and services, visit our web site at allanblock.com.