| Unit Water Content |
(Concrete Engineering) The quantity of water per unit volume of freshly mixed concrete, often expressed as gallons or pounds per cubic yard. This is the quantity of water on which the water cement ratio is based, and does not include water absorbed by the aggregate |
| Vaporproof |
(Concrete Engineering) A material that is totally immune to the passage of a gas under pressure. Any material that is truly vaporproof will inherently be waterproof. |
| Wagner Fineness |
(Concrete Engineering) The fineness of materials such as portland cement expressed as total surface area in centimeters per gram as determined by the Wagner turbidimeter apparatus and procedure. |
| Water-Cement Ratio |
(Concrete Engineering) The ratio of the amount of water, exclusive of that absorbed by the aggregates, to the amount of cement in a concrete mix. Typically expressed as percentage of water, by weight in pounds, to the total weight of portland cement, fly ash, and any other cementitious material, per cubic yard, exclusive of any aggregates. |
| Water Vapor Pressure |
(Concrete Engineering) The pressure exerted by water vapor. Air that contains higher amounts of water vapor exerts a higher vapor pressure than air which has a lower amount of has a higher water vapor pressure In concrete water vapor pressure is calculated by the difference between the vapor pressure of the concrete and the ambient relative humidity and temperature and in contact with the soil. that is calculated by; based upon relative humidity and temperature. The greater the difference between the water vapor and ambient humidity and temperature, in degrees Fahrenheit. the greater the water vapor pressure exerted. |
| archway |
ที่ว่างผ่านใต้โค้ง, โค้งสำหรับทางผ่านเนื้อที่ พื้นที่ ที่ว่าง |
| curtain wall |
ผนังล้อมอาคาร ไม่รับน้ำหนัก |
| backing of a wall |
ผิวที่หยาบและไม่เรียบรอยด้านหลังของกำแพง การบรรจุหินอ่อนหรืออิฐหักที่หักกำแพงกันดินเพื่อระบายน้ำ |
| bearing wall |
กำแพงรับน้ำหนัก
|
| beeswax |
ขี้ผึ้ง ใช้มากในงานศิลปะและอื่น ๆ |
