Other

Gcp Applied Technologies Inc.

Verifi LLC

Jason Straka

Mark F Roberts

Nathan A Tregger

Elise Berodier

Greg Austin

Robert Hoopes

Gregory A Goldstein

Described are a method and system for coordinating the delivery and placement of concrete loads at a job site, and more particularly to adjusting a set time value or value range of the concrete loads, thereby to facilitate finishing or other concrete placement activities. In exemplary embodiments, the adjustments can be made based on an assessment of previously placed concrete loads. The set time values or value ranges of the concrete can be monitored and adjusted to achieve desired properties during installation and/or in its hardened state.

Concrete placement sensing using aerial drones

Exemplary methods and systems of the invention minimize errors in the manufacture or management of aggregate-containing construction materials such as concrete. Aggregates used for making concrete are stored or weighed in dry bulk bin type hoppers, and conveyed from these hoppers into mixer drums which batching or mix the concrete. The hoppers or conveyor belts may contain sensor probes for measuring moisture levels in the aggregate. These sensor probes require calibration from time to time, but time and expense are required for proper calibration, leading to habitually erroneous moisture level data used in the industry on a daily basis. The present inventors believe that the smallest inaccuracies in aggregate moisture level readings can have profound effects on the properties of the resultant concrete product. To confront this long suffered problem, the present inventors surprisingly discovered that the inaccuracy of these aggregate moisture sensors, as used for evaluating the aggregate as a dry bulk material, can be detected and even addressed through the use of slump monitoring systems during delivery to evaluate the concrete slurry mix prepared from the aggregates.

Minimizing variation due to construction aggregate moisture probes

Coordinating concrete delivery and placement

Growing community of inventors

Danville, CA, United States of America

Jason Straka