Books by Donald L. Ahrens

This manual brings the student information concerning concrete construction. Developements in cement types are presented. Graphics and tables are included, and information related to cold and hot weather concreting is presented, including numerous tables and figures. Materials from Portland Cement were used to develop this manual. Each chapter contains classroom exercises to assist students in learning the subject matter. A number of chapters contain laboratory exercises that assist the student in learning practical aspects of concrete construction. This manual also includes numerous demonstrations and ideas.

This manual contains the latest in small engine technology including CDI solid-state ignition, automatic chokes, no choke carburetors, and fuel pump carburetor systems. Classroom and laboratory exercises are included. Special emphasis related to small engine overhaul and repair has been designed into all laboratory exercises to make your small engine instructional unit more complete. Procedures for ordering small engine parts for repair are covered throughout the manual. The appendix contains safety exam, parts order form, English/Metric equivalent charts, engine-matics and hydra-matics formulas, and engine overhaul worksheets.