June 2001 Table of Contents

Features Is Your Information Making Money for You?

Without clear, accurate, and timely information about production, decision-makers have a difficult time making the best decisions. Timely and accurate information in the hands of your leaders and crews can and will make you money. Read more

Features Hardened Air-Voids in Concrete: Who Is Responsible?

Contractors in cold weather regions know that adequate air content in concrete is required for freeze/thaw durability. Read more

Features Carbonation

Reaction between carbon dioxide and a hydroxide or oxide to form carbonate, especially in cement paste, mortar, or concrete Read more

Features Hydrodemolition

Hydrodemolition, faster than a jackhammer, produces a better surface for concrete repair and protective coatings. Read more

Features Evaluating Concrete Repair Options

The first step in repairing concrete must always be an objective look at why a repair is needed. Read more

Features Minimizing Cost Overruns in Repair Projects

Major repair projects often exceed budget by up to 500%. You can avoid such a situation if you determine repair requirements and costs systematically and logically, and closely monitor the work. Read more

Decorative Concrete Concrete Countertops

Depending on the contractor's artistry and skill, the choices for concrete countertops are limitless. Seven contractors share information about cast-in-place countertops, their finishes, durability, sealers, and costs. Read more

Problem Clinic Placing Near Final Position

We have been lining manure pits with concrete on slopes of 2H:1V for some years and have always specified (per ACI recommendations) the use of long chutes or pumps to place the concrete as near to its final position as possible. Read more

Problem Clinic Pulverizing Concrete

Do you know of any equipment that uses vibration or ultrasonic waves to pulverize concrete? We have a bridge demolition project in Rock Island, Ill., that requires removing existing concrete-filled grating from the structure. Conventional means of removal Read more

Problem Clinic Sawing to the Wall

In the February 2001 issue of Concrete Construction, a reader asked, "Is there any way to saw joints all the way to a wall?" Read more

Problem Clinic Blisters and Vacuums

I would like to comment on a question in the December 2000 Problem Clinic. The problem was blistering of epoxy-terrazzo applied to a concrete slab with a 4-inch layer of granular fill over the vapor retarder. The question was if a vacuum pump could be us Read more

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