Sneak water detection for concrete delivery vehicles
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United States of America Patent
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Oct 11, 2016
Grant Date -
Apr 17, 2014
app pub date -
Oct 11, 2013
filing date -
Oct 15, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention provides a method and system for detecting “sneak” additions of water or other fluid into the mixing drum of a concrete delivery vehicle having an automated rheology (e.g., slump) monitoring system. Sneak fluid additions are detected based on continuous rheology monitoring, even where valves and flow meters on the delivery vehicle are not used for the fluid addition. The invention is effective for monitoring additions by truck drivers who might add water from an undocumented water source (e.g., hose) along the delivery route or at the site, to hasten pouring, placement, and finishing at the time of delivery. Once sneak fluid addition is detected, the methods and system provide for reporting in the form of alerts, alarms, or other indications that sneak fluid addition has occurred, including monitor graphs or printouts confirming existence and/or extent of sneak fluid added into the vehicle mixing drum.
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