CIVE 2700 Study Guide - Final Guide: Portland Cement, Silica Fume, Elliot Lake

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Blue clay was used to build tunnels in the ww1, people used to drown because when wet, the blue clay turns to liquid. Formulated by combining portland cement, silica fume, quartz flour, fine silica, and sand. It is used for concrete and cement with water to create glue that holds strong aggregates. Viscosity modifying admixture. (thickener means to improve cohesiveness) Why: fiber creates air bubbles which protect the concrete from fire. Check: they put fiber because if it fails, it takes time because of the fiberous layer that holds it. The type of cement we used in the lab. Fb= fb(kb*kh*ks*kt*kz) fb = bend strength of timber. An engineering firm hired by the ont. Police to investigate the collapse that happened in the top floor of the garage mall. What happened is the steel beams under the top floor of the garage.