Naslov
High Performance Lightweight Concrete in Bridge Construction

Autori
Bjegović, Dubravka ; Skazlić, Marijan ; Jambrešić, Mladen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of International Conference on Bridges / Radić, Jure - Zagreb : SECON, 2006, 623-630

Skup
International Conference on Bridges

Mjesto i datum
Dubrovnik, Hrvatska, 21.05.2006. - 24.05.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
bridges; durability; high performance lightweight aggregate concrete; prestressed concrete; strength

Sažetak
Limiting the water/cement ratio to be less than 0.45, by incorporating various pozzolans combined with a range of superplasticizers, results in higher density of lightweight concrete which is necessary for developing higher compressive strengths. High strength lightweight aggregate concrete (HSLWAC) is a concrete with compressive strength higher than 40 MPa. High performance lightweight aggregate concrete (HPLWAC) is a HSLWAC with improved durability properties. The advantages of using HPLWAC in bridge construction are reduced dead load, crane capacity and transportation costs and reduction in formwork and propping. In this paper state-of-the-art report on HPLWAC mechanical and durability properties is given and the comparison of properties of HPLWAC and normal density concrete (NDC) is presented. Furthermore, the paper gives the detailed overview of several relevant HPLWAC constructions, including bridges, built in last 15 years. According to presented comparison and overview, the possible advanced application of HPLWAC in bridge construction is analyzed, especially for bridge construction in marine environment.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA