Civil Engineering MaterialsThis book deals with properties, applications and analysis of important materials of construction/civil engineering. It offers full coverage of how materials are made or obtained, their physical properties, their mechanical properties, how they are used in construction, how they are tested in the lab, and their strength characteristics--information that is essential for material selection and elementary design. Contains illustrative examples and tables and figures from professional organizations. KEY TOPICS: Considers all common materials of civil engineering/construction--and looks at each in depth: e.g., physical properties, mechanical properties, code provisions, methods of testing, quality control, construction procedures, and material selection. Discusses laboratory testing procedures for selected tests--provides step-by-step descriptions of laboratory test procedures to determine properties of materials. All test procedures are based on relevant ASTM specification. MARKET: For Civil Engineers, Construction Engineers, Architects, and Agricultural Engineers. |
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... ADMIXTURES An admixture is a material other than water , aggregates , cement , and fiber , added to plastic concrete or mortar to change one or ... admixtures by their intended uses , Sec . 3.11 Admixtures 175 Admixtures Chemical Admixtures,
... admixtures C494 B Retarding admixtures C494 To get dense concrete , to improve workability To delay setting and hardening ; hot - weather concreting ; large structures UA C Accelerating admixtures C494 To accelerate setting and early ...
... Admixtures . A retarding admixture ( ASTM Type B ) is added to concrete to delay its setting and hardening , especially in hot - weather applications or when the ambient temperature exceeds 90 ° F ( 32 ° C ) . High temperatures enhance ...