Abstract: System and method of the invention involves use of a sensor-containing body which is mounted and/or rotatably disposed along the longitudinal rotational axis of a concrete mixer drum at the close end, the sensor-containing body being connected to a conduit for introducing water, chemical admixture, gas, and/or cleansing fluid through the closed end of the drum into the mixer drum. Numerous heretofore unrealized combinations of advantages and benefits are provided within the concrete industry by the invention.

Abstract: Packeted fibers comprise a plurality of fibers arranged in side-by-side manner, said plurality of fibers being cut perpendicularly to obtain terminal cut ends, and said terminal cut fiber ends being separably-binded together by a binding material along a plane defined by said fiber ends, whereby said plurality of fibers form a collated packet that facilitates introduction of the fibers into a castable composition, such as a concrete mix, and also facilitates dispersal and substantially uniform distribution of the fibers within the castable composition. Methods for packeting fibers are also disclosed.