November 1981 Table of Contents

Features High-Rise Office Building Package

Whoever said "invent a better mousetrap and the world will beat a path to your door" didn't know what he was talking about. Read more

Features Skip Joist Forming Takes Twin Towers to Concrete

Preliminary budget pricing for the Central Park Plaza in Omaha, Nebraska (two identical 17-story towers, each with a truncated right triangular shape) was based on a structural steel system, with fireproofed beams and girders, and a metal deck with concrete topping. Read more

Features Develop an Effective Marketing Plan for Your Construction Company

Unfortunately most of us don't learn anything about marketing in engineering school or out on the job site. Read more

Features Parking Lot Promotion Increases Contractor Profit

One of the best ways for a company to increase its share of the action is through promotion. Read more

Features Construction Time and Front-End Investment Affect Selection of Concrete for High-Rise Offices

The Portland Cement Association, market development and public affairs, completed a survey of sixty-six firms comprising about 30 percent of office building contractors. Read more

Problem Clinic Crumbling During Edging

When we use air-entrained concrete we find that the concrete becomes crumbly when we put on our finish edging. What causes this? Read more

Problem Clinic Proper Placement of Vapor Barriers

We would like to resolve the question of proper placement of vapor barriers under concrete slabs on grade. We have a system that has worked well for us in the past. In nonproblem areas we have traditionally used 6-mil polyethylene film directly under conc Read more

Problem Clinic Temporary Repair With Epoxy

I am a structural engineer and am investigating a problem with a parking garage below grade. This garage is part of a larger building and projects beyond it. It has a two-way flat slab at grade like a bridge. It is about 6 years old. There are cracks over Read more

Problem Clinic Load Test a Questionable Slab

A reinforced concrete slab consisting of very narrow tee beams was poured in place with hardly any quality control at a very low slump and no vibration. Read more

Problem Clinic ACI Tolerances

Were the ACI tolerances for cast-in-place concrete (published in your October 1980 issue, beginning on page 743) adopted by the American Concrete Institute? Read more

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