Design Blueprint: Lime and Rice-Husk-Ash Mortar, 1:2 Mix

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24115095): A mortar of lime and rice husk ash at 1:2, moist-cured, honestly claimed at M2.5 (2.96 MPa at 28 days in simulation), and not used below ground or in standing water. Wood-ash-only and ash-clay mixes in the source paper do not meet their claimed strengths and are not specified here. Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.