March 30, 2017
Concrete Materials, a leading producer of ready-mix concrete in South Dakota, partners with Giatec to offer SmartRock® Plus to local contractors.
SmartRock® Plus is a value-added solution offered to contractors and construction companies who want to obtain real-time concrete temperature and strength results on the jobsite. This is critical information that is used to optimize various processes such as formwork removal, post-tensioning, curing optimization and opening the road to traffic.
With headquarters in Sioux Falls, Concrete Materials has provided solid resources for more than 70 years from commercial and road construction to residential solutions and hardscapes. Concrete Materials offers construction professionals and do-it-yourselfers a wide range of performance-based concrete products custom-made to meet the requirements of every building project.
Concrete Materials joins the list of leading ready-mix producers currently offering SmartRock® Plus including Stoneway Concrete (Seattle, WA), Tomlinson (Ontario, Canada), and Angelle Materials (Baton Rouge, LA).
Giatec is a leading technology company in the development of smart concrete testing technologies. These include advanced laboratory devices for durability-based quality control of concrete, portable NDT probes for corrosion detection and condition assessment of existing infrastructure, and wireless rugged sensors for monitoring concrete properties in real-time. SmartRock® Plus is an IoT-based solution developed by Giatec that leverages ready-mix producer’s data combined with embedded sensors to offer a real-time estimation of concrete strength to contractors and construction companies.
Read more about SmartRock® Plus
Research Background Portland cement is often replaced by supplementary cementitious materials (SCMs) in concrete to increase sustainability (reducing CO2 emissions due to lower cement contents) and durability (mitigation of alkali-silica reaction, reduced sulfate attack, and reduced chloride penetration). Fly ash and natural pozzolans are specified using ASTM C618/AASHTO M295, and an important part of this specification is the strength activity index test (SAI), which dictates that a mortar mixture with 20% SCM replacement should reach at least 75% strength of the control mixture at either 7- or 28-days. The SAI is a potentially flawed test as inert materials are known to be able to pass the test. The early testing age, low SCM replacement…