98 lines
2.3 KiB
JSON
98 lines
2.3 KiB
JSON
{
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"title": "The First Pour — A Field Guide",
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"author": "Carlos Acosta",
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"version": "1.0",
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"location": "Corpus Christi, TX",
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"date": "2026-07-20",
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"mix_ratio": {
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"cement": {
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"part_by_weight": 1.0,
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"volume_equivalent_sacks": 1,
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"weight_lb": 94,
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"wikidata": "Q45190",
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"description": "hydraulic binder made from limestone and clay"
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},
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"sand": {
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"part_by_weight": 2.0,
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"volume_equivalent_cu_ft": 2,
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"standard": "ASTM C33"
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},
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"aggregate": {
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"part_by_weight": 3.0,
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"volume_equivalent_cu_ft": 3,
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"size_inches": 0.75,
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"standard": "ACI 211.1"
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},
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"water": {
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"w_c_ratio_min": 0.40,
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"w_c_ratio_nominal": 0.45,
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"w_c_ratio_max": 0.50,
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"gallons_per_sack_min": 5.0,
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"gallons_per_sack_max": 6.0,
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"wikidata": "Q283",
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"formula": "H2O"
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}
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},
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"timing_phases": {
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"base_temp_f": 75,
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"total_set_minutes": 90,
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"phases": [
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{
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"name": "MIXING",
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"start_min": 0,
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"end_min": 10,
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"action": "rotate drum, watch for clumps"
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},
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{
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"name": "TRANSPORT",
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"start_min": 10,
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"end_min": 25,
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"action": "keep agitation, no stops >2 min"
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},
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{
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"name": "POUR",
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"start_min": 25,
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"end_min": 45,
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"action": "continuous flow, rod every 12 inches"
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},
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{
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"name": "FLOAT",
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"start_min": 45,
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"end_min": 60,
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"action": "wood trowel only"
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},
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{
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"name": "SEED",
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"start_min": 60,
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"end_min": 90,
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"action": "cover with burlap, begin cure"
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}
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],
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"temp_correction": {
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"above_75f_adjust_min_per_5f": -5,
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"below_75f_adjust_min_per_5f": 8
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}
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},
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"environmental_limits": {
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"humidity_rh_high_threshold": 80,
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"humidity_water_reduction_at_high": -0.03,
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"humidity_rh_low_threshold": 40,
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"wind_mph_cover_threshold": 15
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},
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"citations": {
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"cement": "https://www.wikidata.org/entity/Q45190",
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"water": "https://www.wikidata.org/entity/Q283",
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"standards": ["ASTM C33", "ACI 211.1"]
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},
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"related_work": {
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"beam_calculator": "https://carlos-acosta.4ort.net/tools/beam-load.html",
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"hyperfilm": "https://carlos-acosta.4ort.net/films/el-calor-del-comal/",
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"neighbor_knowledge": "alvester"
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}
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}
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