April 1971 Table of Contents

Problem Clinic Organization Membership

We're somewhat new in the concrete business and a little appalled at the number of associations and societies serving the field. Undoubtedly many of them deserve our support, but at the moment we feel we should join only one. Which one would you recommend Read more

Problem Clinic Ecological Concrete

What do you know about "ecological concrete," a term that has recently appeared in the literature of our industry? Read more

Problem Clinic Ice Removal Methods

Other than scraping, what methods for removing ice from concrete surfaces are least likely to damage the concrete? Read more

Problem Clinic Stack-Sack Method

Isn't the Stack-Sack method of wall construction described in your March issue just a variation of the stream side-slope erosion prevention technique shown in the photograph? Read more

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