Deliverance

Article Abstract:

Government agencies are shifting away from the traditional low-bid system in awarding contracts for construction projects to make better use of taxpayers' money and improve quality. For example, the contract for the National Archives Building to be built in College Park, MD, was based on competitive negotiation and technical merit. Prospective contractors were asked to submit a list of personnel who would work on the project, their resumes and references. The contracting agency, the General Services Administration (GSA) even asked contractors how they plan to construct the building.

Highway and street construction, Nonresidential Building Construction, Management, Construction industry, Evaluation, Public works, Contracts, Letting of contracts, Competitive bidding, Public contracts, Government contracts

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Boston's city within a city

Article Abstract:

An on-site report is provided about Deer Island, the center of the Massachusetts Water Resource Authority's cleanup efforts at Boston Harbor. Using only the best professionals to guide the work until 1999, this is complemented with the adaptation of computer aided management and foreign technical assistance and equipment. This mega project has attracted foreign construction delegations inquiring on large scale pollution controlling systems. Domestically, educational programs for better understanding the project are being implemented.

Reports, Pollution, Control, Waste management, Water quality management, Boston Harbor

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Adding up admixtures

Article Abstract:

Concrete admixture types have multiplied and engineers are using more of them to enhance concrete durability and workability. Admixtures now in use include silica fumes, corrosion inhibitors, accelerators and retarders. Researchers plan to develop others, such as antifreeze and antiwashout admixtures, which allow concrete pouring in cold weather and underwater, respectively. However, some engineers have to do some trial batching to test admixture-concrete chemical compatibility. Others want more standardized tests devised.

Usage, Concretes, Concrete, Concrete additives

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