SECTION I: INTRODUCTION.

SECTION II: TESTS FOR AGGREGATES, PORTLAND CEMENT, AND MORTAR.

SECTION III: TESTS FOR PORTLAND CEMENT CONCRETE.

SECTION IV: APPENDICES.

INTRODUCTION:

The aim of this ebook is to familiarize civil engineering and know-how college students with two of an important supplies of development, portland cement (PC) and portland cement concrete (PCC). Individuals steadily make the error of utilizing these phrases interchangeably. The ebook aimsto help college students in gaining an understanding of PC and PCC via the bodily dealing with andtesting of those supplies within the laboratory setting. Whereas the ebook was primarily written foruse on the faculty degree, it additionally could function a sensible information for the graduate engineer and laboratorytechnician.The physique of this ebook is split into a number of sections.

The primary explains how concrete batchesare designed, combined, and measured for varied consistencies in a particular part entitled Mix DesignProcedures. Part II particulars the assessments of the first element supplies of concrete different thanwater, particularly portland cement, aggregates, and mortar. Part III contains a few of the fundamentalconcrete testing procedures for various energy parameters in conformity with the requirements ofthe American Society for Testing Supplies (ASTM).

There in all probability won’t ever be sufficient laboratorytime to finish the entire check procedures, even in a 15-week semester.The testing procedures included herein are meant to precisely replicate the precise ASTMdesignations, typically with modifications dictated by the inherent time constraints of a schoollaboratory. Subsequently, in sure instances, similar to in securing the precise gravities and absorption ofaggregates, modifications had been launched to suit the standard 3-hour laboratory module.

The place theparticular ASTM methodology permits alternate procedures, solely the one deemed extra relevant to theteaching state of affairs was chosen.The distinctive property of all merchandise using hydraulic cements is the interval required to obtaintest specimens and its time sensitivity. For that reason appreciable time should elapse betweenspecimen preparation and testing. This complicates the scheduling course of when planning a coursein portland cement concrete and makes this laboratory distinctive.

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