Concrete Admixtures: Air_entraining
Concrete chemical admixture reference data — ASTM C494 Types A/B/C/D/E/F/G/S, ASTM C260 air-entraining, calcium nitrite corrosion inhibitors, VMA, SRA, and lithium nitrate ASR mitigation. Parameters include dosage range (mL/100 kg cement), water reduction (%), initial/final set time change (min), compressive strength effect at 1/7/28 days (%), slump increase (mm), air content change (%), and compatibility notes.
| admixture type | product class | air content change pct (%) | astm standard | common name | compatibility notes | dosage max mL per 100kg (mL/100kg-cement) | dosage min mL per 100kg (mL/100kg-cement) | dosage typical mL per 100kg (mL/100kg-cement) | set time change final min (minutes) | set time change initial min (minutes) | slump increase mm (mm) | strength 1d pct change (%) | strength 28d pct change (%) | strength 7d pct change (%) | water reduction max pct (%) | water reduction min pct (%) | water reduction typical pct (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air_entraining | micro_bubble_vinsol_resin | 4 | ASTM C260 | Vinsol resin air-entraining admixture | Target air 4-7% for severe freeze-thaw; 3-4% for moderate; reduces water demand ~3%; each 1% air reduces strength ~5%; use ACI 318 Table 19.3.3.1 for target air by exposure class; incompatible with some fly ash (high LOI) | 195 | 13 | 65 | 0 | 0 | 50 | -10 | -5 | -5 | 0 | 0 | 0 |
| Air_entraining | synthetic_surfactant | 4 | ASTM C260 | Synthetic surfactant air-entraining admixture | Sodium lauryl sulfate or similar; more consistent bubble spacing than Vinsol resin; for SCC with low cement factor; dosage highly cement-specific | 195 | 13 | 52 | 0 | 0 | 50 | -10 | -5 | -5 | 0 | 0 | 0 |
| Air_entraining | tall_oil_derivative | 4 | ASTM C260 | Tall oil fatty acid air-entraining admixture | Good freeze-thaw durability; compatible with lignosulfonate WR; sensitive to water hardness; verify spacing factor per ASTM C457 | 260 | 20 | 78 | 0 | 0 | 50 | -10 | -5 | -5 | 0 | 0 | 0 |
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