Adding fly ash (FA) in shotcrete mixtures enhanced the long-term performance but invited massive white efflorescence on surface layer under partial-immersion exposure condition. Meanwhile, the lower w/b ratio proved to be efficient in increasing the resistance to both sulfate attacks. The presence of chloride ions can globally mitigate these deteriorations. Results show that loss of strength was the typical feature of chemical sulfate attack on shotcrete, while surface spalling dominated in deterioration caused by physical sulfate attack. Two different laboratorial immersion regimes (continuously full immersion and partial immersion with cycling temperature and relative humidity) were carried out to induce chemical/physical sulfate attack. Three water-to-binder ratios (w/b), i.e., 0.35, 0.45, and 0.55, and two types of supplementary cementitious materials (SCMs), namely, fly ash (FA) and silica fume (SF), were considered in the current study. For example, gem developers can consult information on DLL loading, MSYS2 library dependency, path separator, and shell escaping.Durability of in situ shotcrete under external sulfate attack was investigated, taking into consideration the addition of mineral admixtures, along with the presence of chloride ions. If you're not sure, just hit Enter and let the tool take care of the rest.Ī Wikipedia page with frequently asked questions, notes for gem developers, maintenance and contribution details can be accessed online. The app starts in a command-line window where you can choose which components you want to install from MSYS2 base installation, MSYS2 system update (optional), or MSYS2 and MINGW development toolchain. Running the setup file again will remove RubyInstaller from your computer. This is required for setting up gems with C extensions. Toward the end of setup, you can instruct the utility to run "ridk install" in order to install the MSYS2 and development toolchain. In addition to the Ruby environment, the downloaded package includes a necessary set of RubyGems and extensions, making it possible to integrate the tool with MSYS2 installations. It's a Ruby language execution environment for Windows users, which comes wrapped in an installer and portable edition, ready to help you write code in Ruby and deploy applications immediately.
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