Experience with Air Entraining Concrete in New Jersey


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Title: Experience with Air Entraining Concrete in New Jersey

Author(s): Charles M. Noble

Publication: Journal Proceedings

Volume: 45

Issue: 3

Appears on pages(s): 521-526

Keywords: no keywords

Date: 3/1/1949

This paper outlines experience in New Jersey with air-entraining concrete utilized primarily to combat attack by de-icing chemicals. Damage to concrete pavements in New Jersey usally is associated with heavy loads. Freedom from disintegration troubles, excpt in isolated cases, is attributed to excellent aggregates, ridgid laboratory contril, mix design, inspection of material and plant equipment and construction supervision at the job site. Air-entraining portland cement concrete was first specified for a concrete pavement contract in 1945 and since then has been used on many contracts with notable success to prevent deterioration due to sealing. The same high standards for materials, mixture design, laboratory control, field inspection and attention to details must be maintained as with ordinary concrete. Pavements, thus far constructed in New Jersey with air entrainment have no scaled or shown signs of disintegration when ice control chemicals have been properly mixed with abrasives at a rate not exceeding 75 ld per cu yd of abrasive. It is too early to form judgement but indications are the results achieved fully justify the use of air-entraining concrete.