The objective of this project was to develop a water-cement ratio measurement meter for easy, rapid and reliable use in the field. The goal was that the equipment be portable, easy to use, low cost and low maintenance, and be able to provide consistent and accurate results. A prototype device has been developed to measure the water-cement ratio of a plastic concrete mix. The method is based on the turbidity of water-cement slurry separated from a concrete mixture by "pressure sieving". Consistent results were obtained for both air entrained and non-air entrained concrete. Statistical analyses of the test results have shown that the Kansas Water-Cement Ratio Meter can measure the water-cement ratio of fresh concrete with an accuracy of +/-0.01 with 90% confidence. The test time is less than 10 minutes which includes cleaning the equipment. Further evaluation with admixtures, and under field conditions are planned

A prototype device, the Kansas Water-Cement Ratio Meter, has been developed that can measure the water-cement ratio of a plastic concrete mix. The method was based on the measurement of the turbidity of the water-cement slurry separated out of a concrete mixture by pressure sieving. This study was undertaken to improve the meter and to do a sensitivity analysis.

Many countries are exploring the use of concrete to improve the reliability of their road networks. However, many developers, agencies, and companies in the construction industry do not yet have sufficient experience in the use of concrete pavement. This can lead to poorly planned, supervised, or executed infrastructure that requires premature and costly repairs or maintenance. This guide explains the factors to investigate and considerations to evaluate as well as the potential risks and mistakes to avoid when planning and constructing concrete pavement. It is a comprehensive resource that will be especially useful for stakeholders in developing countries.

Civil engineers will value this resource that examines the tools and techniques used to estimate the in-place strength on concrete, permeation properties that relate to potential durability, and the methods used to assess the internal condition of concrete and the corrosion activity of steel reinforcement.

Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this jOint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 40 (thesis year 1995) a total of 10,746 thesis titles from 19 Canadian and 144 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 40 reports theses submitted in 1995, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.