We are looking for a permanent solution to environmental disasters, fires, earthquakes, floods, and harsh environmental problems, as well as ways to stabilize the structures of war-prone areas that suffer from huge economic, social and human losses, by using innovative concrete structures which employ nanomaterial technology, with an emphasis on acceptable cost and achieving sustainability, durability, and comfort factors. Concrete structures (low- to medium-rise) characterized by high fire resistance (externally and internally) achieve higher structural balance rates, higher sustainability rates, and higher durability, with a longer life than their counterparts. All of this can be achieved by using lightweight, high-performance structural concrete made from environmentally friendly materials that do not involve any harmful substances or unconventional materials. We have created a prototype (KandCrete) composed of coarse and fine aggregates,which may be used as either ordinary or resistive cement. It has the same composition proportions as any conventional concrete, without a significant increase in cost. KandCrete has a density of (1600 to 1850 kg / m³), exhibiting a 25 % to 35% reduction in the conventional weight of concrete. Its compressive strength is 585 to 665 kg/cm², which is 90% to 121% greater than that of conventional concrete, and has a heat gain %age of 2.47% to 2.58%, with heat-transfer resistance 25 times that of insulated conventional concrete. It is not permeable to liquids and harmful substances and remains chemically balanced in the face of harmful environments. We have obtained a full structural system with integral components and members, with full distribution of loads, high stability and a tough structure, with no joints or links, no cracking , no deflection , no deformation, no weak connections , no buckling, no torsion.. etc. Our formula reduces energy consumption to the extreme. It needs little maintenance to preserve its structure or appearance, and is long-lasting and self-healing. It does not rot and is termite-resistant.