St. Louis Holds Successful Concrete Pavement Demonstration in Nearby City

The Concrete Council of St. Louis recently held a demonstration of a municipal slab replacement (seen here) in the City of Manchester, MO, incorporating several new concrete technologies, reports NRMCA Senior Director, Local Paving, Luke McHugh. A section of First Street in Manchester was repaved and the concrete mix included liquid fly ash and internal cure admixtures. These materials provide a number of benefits to the owner as well as to the contractor placing the concrete, McHugh said, noting that similar materials are available from most major admixture producers.

Sensors were also placed prior to the pour that would transmit concrete strength in real time to a data logger via cellphone. Early results indicate 7-day strength of 4,400 psi+ and comparisons to cylinder breaks will be made at 28 days. Plans are also being made to test placement of sensors in structural and floor slab projects.

Jesse Jonas, PE, is leading the Concrete Council efforts to bring these and other new technologies to the industry in Missouri and Illinois.

For more information, contact Skip Dulle, executive director, Concrete Council of St. Louis at oad@concretecouncil.com or Luke McHugh at lmchugh@nrmca.org.