Heat insulation UHPC composition having enhanced heat insulation properties and compressive strength
A heat insulation UHPC composition having enhanced heat insulation properties and compressive strength is provided where silica beads are mixed into a UHPC composition so as to enable blocking radiant heat, thereby enhancing heat insulation properties and simultaneously enhancing compressive strength. One preferred embodiment of the present invention comprises, with respect to 100 parts by weight of cement; 24-26 parts by weight of silica fume; 20-60 parts by weight of fine aggregate; 30-150 parts by weight of silica beads; and 3-4 parts by weight of a superplasticizer, wherein the cement is mixed with water such that the water-cement ratio (cement weight ratio) is 28%.
1 . A heat insulation UHPC composition having enhanced heat insulation properties and compressive strength, the composition comprising:
cement;
24 to 26 parts by weight of a silica fume, based on 100 parts by weight of cement;
20 to 60 parts by weight of a fine aggregate, based on 100 parts by weight of cement;
30 to 150 parts by weight of silica beads, based on 100 parts by weight of cement; and
3 to 4 parts by weight of a superplasticizer, based on 100 parts by weight of cement,
wherein the cement is mixed with water in a weight ratio of water to cement of 28%.
2 . The heat insulation UHPC composition of claim 1 , wherein the silica beads have a spherical form.
3 . The heat insulation UHPC composition of claim 2 , wherein the silica beads have a size of 4 to 7 μm.
4 . The heat insulation UHPC composition of claim 1 , wherein the fine aggregate is silica sand.
5 . A thermal break insulation structure comprising the heat insulation UHPC composition of claim 1 .