Increasing building energy efficiency is one the most cost-effective ways to reduce
emissions. The use of thermal insulation materials mitigates heat loss in buildings,
therefore minimising heat energy needs. In recent years, several papers were
published on the subject of foam alkali-activated cements with enhanced thermal
conductivity. However, on those papers cost analysis was strangely avoided. This
paper presents experimental results on one-part alkali-activated cements. It also
includes global warming potential assessment and cost analysis. Foam one-part
alkali-activated cements cost simulations considering two carbon dioxide social costs
scenarios are also included. The results show that one-part alkali-activated cements
mixtures based on 26%OPC + 58.3%FA + 8%CS + 7.7%CH and 3.5% hydrogen
peroxide constitute a promising cost-efficient (67 euro/m3), thermal insulation solution
for floor heating systems. This mixture presents a low global warming potential
of 443 KgCO2eq/m3. The results confirm that in both carbon dioxide social cost
scenarios the mixture 26 OPC + 58.3 FA + 8 CS + 7.7 CH with 3.5% hydrogen
peroxide foaming agent is still the most cost efficient.