…sieve and to be retained on a 150 mμ (No. 100) sieve. Reaction between sodium hydroxide solution 1 N and siliceous component in the aggregate for 24 h at 80…

…effect of increase in compression steel on ASR strain. When the compression steel is increased (with constant tension steel) ASR strain in compression zone is reduced. In R5 and R6…

…2. All ~ pozzolanic admixtures comply with the require- ments for minimum content of (SiO. + AI.03 + Fe.03); maximum content of S03; maximum content of MgO and maximum percentage…

…rise to alkali-silica reaction, though differing in the speed of reaction, basalt are rapid-reacting and granite, slow-reacting aggregates. The aggregates were mixed with 15 experimental composite cements, following composition of…

…of the concrete prism test (CPT). The mineralogical compositions determined by XRD on finely powdered samples are summarized in Table 1. As SCMs were used two aluminium containing commercially available…

…compressive strength, flexural strength 1 INTRODUCTION Ultra-high performance concrete (UHPC) typically refers to cementitious mixture having compressive strength greater than 150 MPa at 28 days [1, 2]. The development of…

…by hydration products. When blastfurnace cement particles hydrated more aluminium and silica were set free and com– bined with calcium hydroxide from the opc clinker grains, to form more CSH…

…Agg- reg- ate Aggregate type (mm ) Statistics2 Sum II+III Comments Sum II+III Comments Sum II+III Comments average 90? median 98 minimum 71? N1 (C) Cataclasite 4-16 maximum 100 3…

…CaO + gaseous SO. and 0.) sodium potassium sulphate (ss) (aphthitalite) Na.SO. o 3K.SO. 968 calcium potassium sulphate (calcium langbeinite) 2CaSO.. K.SO.. 1011 calcium potassium sulphate hydrate (syngenite) CaSO.. K.SO…..

…Verfahren zur selektiven Zerkleinerung von Beton. Bauhaus-Universität Weimar (2003). [16] Deutscher Ausschuss für Stahlbeton; DAfStb (Hrsg.): Vorbeugende Maßnahmen gegen schädigende Alkalireaktion im Beton (The German Alkali-Guideline). Ausgabe Februar 2007. [17]…