 Tioga Ready Mix Co. |
Concrete is a heterogeneous system of solid, discrete, gradiently sized, inorganic mineral aggregates, usually plutonic (feldspathosiliceous or ferromagnesian) or sedimentary-calcareous in origin, embedded in a matrix compound of synthesized polybasic alkaline and alkaloidal silicates held in aqueous solution and coprecipitate dispersion with other amphoteric oxides, this matrix being originally capable of progressive dissolution, hydration, reprecipition, gelatin and solidification through a continuous and co-existent series of crystalline, amorphous, colloidal and cryptocrystalline states and ultimately subject to thermoallotriomorphic alteration, the system when first conjoined being transiently plastic during which stage it is impressed to a predetermined form into which it finally consolidates, thus providing a structure relatively impermeable and with useful capacity to transmit tensile, compressive and sheer stresses.
Source: American Concrete Association's Pavement Progress Report
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