TY JOUR TI MECHANISMS AND FACTORS THAT WORSEN THE STRENGTH GAIN OF SOIL STABILIZED WITH CHEMICAL ADDITIVES USING THE EXAMPLE OF A MULTICOMPONENT HYDROPOLYMER AND A CONCENTRATED MINERAL MIXTURE OF POWER STAB KW stabilization KW soil strengthening KW POWER STAB additives KW physico-mechanical properties KW cement activity KW IR spectroscopy JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Trautvain, A.I. AU Kozhevina, A.A. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov