WATER ABSORPTION OF
DIFFERENT TYPES OF WOOD
MARKEL CESAR A. LUNA /
CHERRY DARA S. REDULLA
1
SECTION SCDE
ARCH 257
Material Experiment: Water Absorption of Different Types of Wood by Markel Cesar A. Luna & Cherry Dara S. Redulla
Arch 257, Section SCDE
Prof. Carmen Bettina Silao Bulaong
The Experiment:
Which wood would absorb the least amount of water?
*The supplied experiment brief
2
Experiment Modifications:
1. Instead of limiting the experiment to five (5) kinds of wood, nine (9) more were used. In total, fourteen (14) species were tested.
2. Aside from the weight gain of the wood samples, thickness changes were also monitored and recorded.
3. Two types of scales were used: a “needle” weighing scale and a digital weighing scale
(instead of a balance scale).
Limitations:
1. Only one (1) Round of Experiments was done on Pine Wood and Molave/Mulawin since only (1) one sample of each was available.
2. Several samples of some samples came from different sources; thus, some starting weights varied. Materials:
Three (3) Sets of Wood Samples
Water
Digital Weighing Scale
Rocks
Pans
3
Ruler
Experiment Procedure and Results:
A. First Round of the Experiment
1. The Wood Samples for the first set were weighed and measured prior to submerging in water for the first twelve (12) hours, after which they were weighed and measured again.
2. The Wood Samples were submerged in water for another twelve (12) hours, then weighed after. 3. The Wood Samples were submerged in water again, but this time, for twenty-four (24) straight hours. The final weights and thicknesses were recorded.
Before Submerging in Water
First 12 Hours
After the First 12 Hours
Second 12 Hours
4
After the Second 12 hours (48 Hours)
The next 24 Hours
After a Total of 48 Hours
WOOD
TYPE
-
STARTING - AFTER FIRST - AFTER SECOND - AFTER NEXT - TOTAL ADDED - PERCENTAGE
WEIGHT (g.) 12 HOURS (g.) 12 HOURS (g.)
24HOURS (g.)
WEIGHT (g.)
OF ADDED
(FINAL WEIGHT)
WEIGHT