UNITED STATES DEPARTMENT OF AGRICULTURE 



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Contribution from the Office of Public Roads 

 LOGAN WALLER PAGE, Director 



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Washington, D. C. 



July 26, 1915. 



LTLAND CEMENT CONCRETE PAVEMENTS FOR 

 COUNTRY ROADS. 



By Charles H. Moorefield and James T. Voshell, 

 Senior Highway Engineers. 



CONTENTS. 



Page. 



Introduction 1 



Materials and construction 3 



Methods, organization, and equip- 

 ment 19 



Page- 

 Cost of concrete pavements 25 



Maintenance 27 



Conclusion 29 



Appendix 3© 



INTRODUCTION. 



The purpose of this paper is to supply reliable information on the 

 subject of Portland cement concrete pavements for the use of high- 

 way engineers and others interested in the improvement of public 

 roads. It is realized, however, that the present state of knowledge 

 concerning the best methods of constructing such pavements is by no 

 means complete, and those who have charge of concrete-road con- 

 struction should be careful to keep themselves informed regarding 

 results obtained by others engaged in similar work and by laboratory 

 experiments. 



The earliest concrete pavement in the United States of which there 

 is reliable record was constructed at Bellefontaine, Ohio, during 1893 

 and 1894. This pavement contains 4,400 square yards and was con- 

 structed in squares similar to those employed in concrete sidewalk 

 construction. The concrete was laid in two courses. This early ex- 

 periment indicated many possibilities and no doubt has been respon- 

 sible for some of the construction methods in use at present. Prior 



Note. — This bulletin contains reliable information on the construction of Portland 

 cement concrete pavements for country roads. Practical instructions for highway engi- 

 neers and all others interested in road making are given. 

 92759°— Bull. 249—15 1 



