Browsing NTNU Open by Author "Leemann, Andreas"

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CO2 storage in cement and concrete by mineral carbonation

Winnefeld, Frank; Leemann, Andreas; German, Alexander; Lothenbach, Barbara (Peer reviewed; Journal article, 2022)

The production of cement is responsible for about 8% of man-made CO2 emissions. CO2 fixation by mineral carbonation in Ca- and Mg-rich raw materials such as cement-based concrete in various stages of its lifetime and ...
Formation of shlykovite and ASR-P1 in concrete under accelerated alkali-silica reaction at 60 and 80 °C

Shi, Zhenguo; Park, Solmoi; Lothenbach, Barbara; Leemann, Andreas (Peer reviewed; Journal article, 2020)

Three types of alkali-silica reaction (ASR) products, i.e., crystalline K-shlykovite, Na-shlykovite and nano-crystalline ASR-P1, have recently been synthesized at 80 °C. It is critical to verify the formation of these ASR ...
Synthesis of alkali-silica reaction product structurally identical to that formed in field concrete

Shi, Zhenguo; Leemann, Andreas; Rentsch, Daniel; Lothenbach, Barbara (Peer reviewed; Journal article, 2020)

Alkali-silica reaction (ASR) can cause expansion and cracking of concrete. Despite significant progress over the past 80 years, the molecular structures of the ASR products remain poorly understood. These reaction products ...