Fast moisture metrics for concrete curing and coatings. Enter temperature and humidity, get clear outputs. Export results to share with crews and inspectors quickly.
| Temperature | Relative Humidity | Pressure | Absolute Humidity | Site interpretation |
|---|---|---|---|---|
| 20 degC | 50 % | 1013 hPa | 8.6 g/m3 | Moderate moisture; normal drying in ventilated areas. |
| 30 degC | 70 % | 1005 hPa | 21.2 g/m3 | High moisture; expect slower curing and coating dry time. |
| 10 degC | 80 % | 1020 hPa | 7.5 g/m3 | Cool air; condensation risk rises near cold surfaces. |
Absolute humidity describes the actual mass of water vapor in air, expressed as grams per cubic meter. Unlike relative humidity, it stays comparable when temperature changes. This helps supervisors judge whether drying, curing, and coating conditions are truly improving between morning and afternoon shifts.
High absolute humidity can slow cement hydration heat dissipation, delay paint and membrane curing, and increase efflorescence risk. Tracking dew point alongside absolute humidity highlights when cold substrates may reach saturation, leading to condensation that compromises adhesion and promotes corrosion.
When absolute humidity remains high, simply warming air may not solve moisture problems. Pair the reading with air volume to estimate the total vapor load in a room. This supports decisions on fan placement, fresh air exchange, and dehumidifier sizing for enclosed basements and stairwells.
Many specifications require recording ambient conditions during concrete finishing, floor covering installation, or coating application. Exported CSV files allow daily logs, while PDF summaries support inspection packages. Consistent documentation reduces disputes by showing trends, not single point readings.
Measure temperature and humidity near the work surface, away from direct sunlight, wet tools, and exhaust outlets. If possible, enter local pressure from a weather station or site sensor for better humidity ratio outputs. Recheck after ventilation changes and before critical application windows.
For planning, compare today's absolute humidity with a target level used for drying schedules. A drop of several grams per cubic meter typically indicates meaningful moisture removal, especially when the temperature is steady. If absolute humidity rises after rain or concrete washdown, increase exhaust or isolate the wet zone. Always validate sensors periodically and replace damaged probes to avoid false confidence during long projects and seasonal changes overall.
Use it to quantify actual moisture in air during curing, coating, flooring, and drying tasks. It helps compare conditions across temperatures, plan ventilation or dehumidification, and document site environment for quality control.
Relative humidity is a percentage compared with saturation at that temperature. Absolute humidity is the vapor mass per cubic meter, so it stays comparable as temperature changes.
Dew point indicates the temperature where air becomes saturated. If a surface is at or below dew point, condensation can form, which can weaken adhesion and increase corrosion risk.
It is optional, but it improves humidity ratio calculations like mixing ratio and specific humidity. If you do not know it, the default value works for most routine comparisons.
It estimates total grams of vapor present in the entered room volume. This helps you gauge moisture load and estimate how much ventilation or dehumidification is needed.
Take readings near the work surface, away from direct sun, wet equipment, and vents. Let the sensor stabilize, and recheck after changing ventilation or after wet trades finish nearby.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.