Belite-calcium sulphoaluminate cement prepared by EMR and BS: Hydration characteristics and microstructure evolution behavior

A Hierarchical Strengthening Path for Chemical Foaming: The Transformation toward Sustainable High-Performance Foamed Material Derived from Solid Waste

“…The signals observed at 1020 and 3523 cm –1 might indicate the presence of AH 3 . Absorption peaks at wavelengths of 874 and 750 cm –1 correspond to Si–OH and Si–O–Ca bonds, indicating the presence of C–S–H gel phases within the system. , The bands at 874 and 1481 cm –1 are attributed to the stretching vibrations of C–O bonds in [CO 3 2– ], suggesting the presence of calcium carbonate within the system …”

“…Figure presents the FTIR spectra of additive-modified FMs during the later stages of hydration; the assignments of bands are summarized in Table S3. In the ternary cementitious system, the characteristic peak at 410 cm –1 is attributed to the bending vibration of tetrahedral [AlO 4 ] units in ye’elimite phases . The presence of C 2 S is indicated by absorption bands at 987 cm –1 (stretching vibrations of Si–O groups) and 667 cm –1 (bending vibrations of Si–O–Si bonds) .…”

“…In the ternary cementitious system, the characteristic peak at 410 cm −1 is attributed to the bending vibration of tetrahedral [AlO 4 ] units in ye'elimite phases. 30 The presence of C 2 S is indicated by absorption bands at 987 cm −1 (stretching vibrations of Si−O groups) and 667 cm −1 (bending vibrations of Si−O−Si bonds). 31 The absorption bands at 603 and 1114 cm −1 are attributed to the vibrations of S−O bonds in [SO 4…”

Construction of Durable Roadsrom Rolled Concrete Based on Belite Slag Cement and Binders

“…2). Before milling, the phosphate granulated slag was dried to a constant weight at a temperature not exceeding 105° C. The preparation of samples to determine the strength properties of belite cement was carried out by pressing the binders at optimum moisture content, which more realistically reflects the conditions of formation and hardening when they are used in monolithic rolling road concrete [12].…”

“…In contrast to point construction (man-made structures and buildings) where the main load is static and designed to hold the weight. Concretes in road construction as a rule is in the zone of soil freezing and work from +30 to -15 C and standard tests in ideal conditions +20c for strength in the laboratory do not give a complete picture [11][12].…”