Innovative Flowable Solution
Lightweight Cellular Concrete (LCC) The Lightweight Cellular Concrete Solution Lightweight Cellular Concrete (LCC), also referred to as low density cellular concrete or grout, is produced by the addition of preformed foam to a slurry of Portland Cement, water, and occasionally, aggregates, fly ash or admixtures. The resulting mixture is highly flowable and pumpable.
Benefits of Lightweight Cellular Concrete beneath Streets and Roads
LCC saves time, money, and resources by replacing aggregates with air bubbles in grade separations and other fills.
Solves settlement problems for bridge abutments, embankments, and other infrastructure by reducing weight by a factor up to four.
Solves low site problems while increasing bearing capacity by providing economical, quick methods to raise grade over large areas.
Documents and Resources In addition to the substantial experience our professional staff brings, CNCA maintains a valuable library of technical resources and case studies.
Above: Crews pour lightweight
cellular concrete at the Gerald Desmond Bridge in Long Beach, CA Lightweight Cellular Concrete is relatively strong, low-density, and has a bearing capacity stronger than compacted fill. Common uses include road base, bridge approaches, and utility or void fills. Impervious LCC has been used successfully as fill for over 50 years including:
The two touchdown ramps of the new Oakland Bay Bridge to reduce settlement.
San Bruno Grade Separation to reduce loads on the BART tube underneath.
Colton Crossing Grade Separation to save $22 million and shorten the schedule.
Please contact our experienced engineers and review our website library for the documents listed below.
Lightweight Cellular Concrete Speeds Highway 35 Storm Damage Reconstruction
Lightweight Embankment Material (Cellular Concrete) – Caltrans
CNCA Geotechnical Professionals Tyler Bodnar, P.E. Director of Geotechnical Markets Tyler.bodnar@cncement.org Telephone: 530.521.0378 Nathan Forrest, P.E. Pavements Engineer nathan.forrest@cncement.org Telephone: 520.235.0480
www.cncement.org