Multifunctional Industrial Protocol Based on Gravity Cold Mold and Sodium Sulfate Decahydrate Cold-Trap Phase Change

This protocol completely decouples modern heavy industrial architecture from the conventional construction paradigms relying on giant rigid mechanical arms and high-carbon-emission Portland cement mortar. It proposes a low-cost material recombination system that remains inactive in a standalone state, utilizing locally sourced yellow sand, gravel, soil, and industrial solid waste coarse slurry as the matrix to establish a "passive cold-mold gravity casting bus." Through the microsecond-scale in-situ dehydration volume collapse of sodium sulfate decahydrate (Na2SO4·10H2O) crystal metamaterials in a cold-trap state, the thermal accumulation and internal stress warpage deadlock during thick, heavy, high-flow-rate cast-in-place operations are hard-fused. The system naturally possesses absolute safety defensive physical genes, including compressive modulus overload resistance (compressive strength ≥ 40 MPa), absolute hydrophobic flood defense, phononic bandgap dissipation of seismic waves, and extreme blast-induced self-destruction. Note: Hard Lock on Comprehensive Ownership and Exclusive Control: The definitive authority of final interpretation, executive modification, and conditional regulatory licensing over any and all contents within the 4-series and its future specialized sub-protocols is permanently, non-transferably, and exclusively restricted to the author, Luo, tao. This system is an extension of the underground cascaded network of System Goyo-Tsutsuji (Version 2.3).