Author: Philip Dale Cady
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
Book Description
Durability of Steel-formed, Sealed Bridge Decks
Durability of Steel-formed, Sealed Bridge Decks
Author: Philip Dale Cady
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 153
Book Description
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 153
Book Description
Astm Special Technical Publication
Durability of Concrete Bridge Decks
Author: National Research Council (U.S.). Transportation Research Board
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 80
Book Description
"This synthesis will be of special interest and usefulness to bridge engineers and others seeking information on design, construction, and maintenance of bridge decks. Detailed information is presented on the causes, prevention, evaluation, and rehabilitation of deck deterioration related to corrosion of steel reinforcement."--Avant-propos.
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 80
Book Description
"This synthesis will be of special interest and usefulness to bridge engineers and others seeking information on design, construction, and maintenance of bridge decks. Detailed information is presented on the causes, prevention, evaluation, and rehabilitation of deck deterioration related to corrosion of steel reinforcement."--Avant-propos.
Chloride Corrosion of steel in concrete
Author: D. E. Tonini
Publisher: ASTM International
ISBN:
Category : Bridges
Languages : en
Pages : 200
Book Description
Publisher: ASTM International
ISBN:
Category : Bridges
Languages : en
Pages : 200
Book Description
Durability of Concrete Bridge Decks
An Experience Survey on the Use of Permanent Steel Bridge Deck Forms
Author: Marvin Henry Hilton
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description
Permanent forms for bridge decks have become increasingly more attractive to the construction industry in recent years. Many highway officials however, have reservations concerning the use of permanent steel forms. These reservations are related to the effect the forms might have on the durability of the concrete decks and to the possibility of future corrosion problems. To evaluate the potential for the occurrence of each of these two possibilities, an experience survey and review of prior research were conducted. A survey of 38 states revealed that approximately half of them either disallowed or minimized the use of steel forms because of a fear of future maintenance problems related to their use. A number of disadvantages related to the use of steel forms were cited by the responding states. A composite evaluation of the state survey and the prior research however, indicated that permanent steel forms do not singularly affect the durability of concrete bridge decks. In addition, permanently formed decks generally have less transverse cracking and increased composite action between the deck and the girders. As compared to conventionally formed decks corrosion of steel forms can be a problem if moisture and salt solutions are allowed to gain access to the forms through joints or drainage features, or by other means. Data obtained from atmospheric corrosion tests indicate that galvanized steel forming should have a life expectancy equal to that of the bridge deck if adequately protected from moisture and salt solutions. (Corrosion resulting from the penetration of chlorides through solid concrete to the depth of the forms is unlikely). The main access channels to the forms would appear to be through cracks or deteriorated concrete. It was concluded that steel forms do not have a detrimental effect on initially good quality concrete decks and, with forming installations designed to minimize possible contact with moisture and salts, corrosion should not be a significant problem during the normal life expectancy of a bridge deck.
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description
Permanent forms for bridge decks have become increasingly more attractive to the construction industry in recent years. Many highway officials however, have reservations concerning the use of permanent steel forms. These reservations are related to the effect the forms might have on the durability of the concrete decks and to the possibility of future corrosion problems. To evaluate the potential for the occurrence of each of these two possibilities, an experience survey and review of prior research were conducted. A survey of 38 states revealed that approximately half of them either disallowed or minimized the use of steel forms because of a fear of future maintenance problems related to their use. A number of disadvantages related to the use of steel forms were cited by the responding states. A composite evaluation of the state survey and the prior research however, indicated that permanent steel forms do not singularly affect the durability of concrete bridge decks. In addition, permanently formed decks generally have less transverse cracking and increased composite action between the deck and the girders. As compared to conventionally formed decks corrosion of steel forms can be a problem if moisture and salt solutions are allowed to gain access to the forms through joints or drainage features, or by other means. Data obtained from atmospheric corrosion tests indicate that galvanized steel forming should have a life expectancy equal to that of the bridge deck if adequately protected from moisture and salt solutions. (Corrosion resulting from the penetration of chlorides through solid concrete to the depth of the forms is unlikely). The main access channels to the forms would appear to be through cracks or deteriorated concrete. It was concluded that steel forms do not have a detrimental effect on initially good quality concrete decks and, with forming installations designed to minimize possible contact with moisture and salts, corrosion should not be a significant problem during the normal life expectancy of a bridge deck.
Transportation Research Record
Bridge B-20-133 on US-151 with Fiber Reinforced Polymer Reinforced Concrete Deck
Air Sampling, Quality Control, and Concrete
Author: National Research Council (U.S.). Transportation Research Board
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 76
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 76
Book Description