Influence of Calcination Temperature and Amount of Low-Grade Clay Replacement on Mitigation of the Alkali-Silica Reaction.

Results of experimental investigation on the mitigation of alkali-silica reaction (ASR) by low-grade calcined clay are presented. Domestic clay with an AlO content equal to 26% and SiO-58% was used. The calcination temperatures were as follows: 650 °C, 750 °C, 850 °C and 950 °C, which were chosen much more widely than presented in previous studies.

Assessment of Long Lived Isotopes in Alkali-Silica Resistant Concrete Designed for Nuclear Installations.

The design of concrete for radiation shielding structures is principally based on the selection of materials of adequate elemental composition and mix proportioning to achieve the long-term durability in nuclear environment. Concrete elements may become radioactive through exposure to neutron radiation from the nuclear reactor. A selection of constituent materials of greatly reduced content of long-lived residual radioisotopes would reduce the volume of low-level waste during plant decommissioning.