Abstract: The present disclosure provides methods and apparatus for determining the water content of a fresh concrete mixture. Additionally, the present disclosure provides methods and apparatus for determining the water to binder ratio for a fresh concrete mixture.

Abstract: The present disclosure provides methods and apparatus for determining the water content of a fresh concrete mixture. Additionally, the present disclosure provides methods and apparatus for determining the water to binder ratio for a fresh concrete mixture.

Abstract: This system includes a concrete identification technology that is used in taking, testing, monitoring, and labeling concrete samples or members using custom labels called a tag. This tag comprises a series of corresponding labels, one for the outside of the form, and on for the inside of the form that becomes part of the concrete sample. These tags are physically bonded to the concrete specimen with only minimal impact on its shape and properties. In some embodiments the tags will contain a hook-and-loop or fiber type surface texture (protrusions) which is placed in the form with the protrusions facing the fresh concrete. The tag can also contain electronic circuitry to gather and track information about the concrete and the surrounding environment. This will eliminate the need to relabel the samples after demolding while also measuring a number of other parameters about the concrete and its performance.

Abstract: According to an embodiment, there is provided herein a method of determining the air void distribution in a sample of fresh concrete. One embodiment of the invention determines a parameter related to air void distribution by applying a known pressure to a fresh concrete sample, measuring a first value representative of the volume under compression, releases at least a portion of the pressure, reapplies the same pressure to the sample, measures a second value representative of the volume under the second compression, and uses differential between the first and second values to estimate a parameter related to the air void distribution.

Abstract: A mixture includes a pulped solid material, water, a viscosity modifier, and a dye. The solid material, water, viscosity modifier, and dye are mixed to form a slurry that will adhere in a layer onto a freshly finished concrete structure for purposed of aiding in curing the concrete.

Abstract: A structural beam, and methods for use, comprising a prefabricated structural concrete portion and a poured-in-place structural concrete portion, wherein said poured-in-place portion comprises at least ten percent of the total weight of said structural beam. Reinforcing extends from the prefabricated portion to the poured-in-place portion. In a preferred embodiment, the structural beam is an “inverted-T” beam, and the prefabricated structural concrete portion comprises the lower corbel portion of the beam, and the poured-in-place portion comprises an upper stem portion of the beam.

Abstract: According to an embodiment, there is provided herein a method of determining the air void distribution in a sample of fresh concrete. One embodiment of the invention determines a parameter related to air void distribution by applying a known pressure to a fresh concrete sample, measuring a first value representative of the volume under compression, releases at least a portion of the pressure, reapplies the same pressure to the sample, measures a second value representative of the volume under the second compression, and uses differential between the first and second values to estimate a parameter related to the air void distribution.