A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Developement of high-performance concrete with lower ecological footprint ; Razvoj betona visokih uporabnih svojstava smanjenog ekološkog otiska
The project ACT began with a quest to explore the possibilities of using calcined clay as an alternative binder for cement. Due to the scarcity and high cost of traditional supplementary cementitious materials, the study focused on collecting and characterizing various materials, including low-kaolin clays from Croatia and neighboring countries. After extensive testing and preparation, six different high-performance mortar mixtures were created, incorporating the low-grade calcined kaolin clay, fly ash, and limestone powder. The results showed that all mixes, even those with extremely low kaolin content, were suitable for use in high-performance cement systems. Building on this success, the study moved to the next phase, focused on formulating high-performance concrete with minimal environmental impact. The mix design used in the Pelješac Bridge was modified to significantly reduce the cement content and substitute it with fly ash and limestone or calcined clay and limestone. Fifteen different mixes were tested for workability, mechanical stability, and resistance to chloride penetration. The results indicated that reducing cement content had a significant effect on durability and service life, and the modified mixes achieved similar or higher sustainability indexes with lower cement amounts. In the third and fourth phases, the study focused on the impact of kaolinite content on the durability of Limestone Calcined Clay Cement (LC3), particularly when the kaolinite content was less than 40%. Two clays with different kaolinite concentrations were used, and the medium-kaolinitic clay showed better durability performance in terms of chloride penetration resistance. The low-kaolinitic clay was found to be suitable for limestone calcined clay cement concrete in moderate exposure conditions. The study highlights the importance of clay purity in LC3 systems and suggests that lower-quality clays can be used in areas where high-purity clays are scarce. In addition, the fourth phase aimed to analyze the effective ...
Developement of high-performance concrete with lower ecological footprint ; Razvoj betona visokih uporabnih svojstava smanjenog ekološkog otiska
The project ACT began with a quest to explore the possibilities of using calcined clay as an alternative binder for cement. Due to the scarcity and high cost of traditional supplementary cementitious materials, the study focused on collecting and characterizing various materials, including low-kaolin clays from Croatia and neighboring countries. After extensive testing and preparation, six different high-performance mortar mixtures were created, incorporating the low-grade calcined kaolin clay, fly ash, and limestone powder. The results showed that all mixes, even those with extremely low kaolin content, were suitable for use in high-performance cement systems. Building on this success, the study moved to the next phase, focused on formulating high-performance concrete with minimal environmental impact. The mix design used in the Pelješac Bridge was modified to significantly reduce the cement content and substitute it with fly ash and limestone or calcined clay and limestone. Fifteen different mixes were tested for workability, mechanical stability, and resistance to chloride penetration. The results indicated that reducing cement content had a significant effect on durability and service life, and the modified mixes achieved similar or higher sustainability indexes with lower cement amounts. In the third and fourth phases, the study focused on the impact of kaolinite content on the durability of Limestone Calcined Clay Cement (LC3), particularly when the kaolinite content was less than 40%. Two clays with different kaolinite concentrations were used, and the medium-kaolinitic clay showed better durability performance in terms of chloride penetration resistance. The low-kaolinitic clay was found to be suitable for limestone calcined clay cement concrete in moderate exposure conditions. The study highlights the importance of clay purity in LC3 systems and suggests that lower-quality clays can be used in areas where high-purity clays are scarce. In addition, the fourth phase aimed to analyze the effective ...
Developement of high-performance concrete with lower ecological footprint ; Razvoj betona visokih uporabnih svojstava smanjenog ekološkog otiska
Porikam Poil, Kiran Ram (author) / Serdar, Marijana / Scrivener, Karen
2023-05-24
Theses
Electronic Resource
English
Carbon footprint , performance-based concrete , limestone calcined clay cement , low kaolinitic clay , chloride diffusion , pore structure , chloride binding , conductivity , ugljični otisak , projektiranje na bazi svojstava , veziva na bazi kalcinirane gline i vapnenca , gline s niskim udjelom kaolina , difuzija klorida , mikrostruktura pora , vezivanje klorida , provodljivost , TEHNIČKE ZNANOSTI. Građevinarstvo , TECHNICAL SCIENCES. Civil Engineering , Građevinarstvo. Građevinsko inženjerstvo i tehnika. Građevinska tehnika kopnenog prometa (ceste , željeznice) , Civil and structural engineering. Civil engineering of land transport. Railway engineering. Highway engineering , info:eu-repo/classification/udc/624/625(043.3)
Osmatranje visokih brana u FNRJ
| TIBKAT | 1960
| TIBKAT | 1966
| TIBKAT | 1959
Ustalost vodonasyshchennogo betona
| Engineering Index Backfile | 1967
Technologičeskaja mechanika betona
TIBKAT | 1.1976 - 16.1992; damit Ersch. eingest.