About the photograph below, it that of a rock crusher somewhere in Batangas Province in 1914. Because road construction was ongoing in that year at a feverish pace from eastern to western Batangas, the use of a rock crushing machine would have made economic sense in comparison to shipping in the crushed rock from elsewhere or breaking the stone by hand, as used to be the case.
|A rock-crushing machine somewhere in Batangas Province. Image digitally extracted from the July 1914 edition of the Bureau of Public Works Quarterly Bulletin.|
The crushed stone is then used as the primary material in the paving of what was a relatively new technology at the time, the macadamized road.
Notes and references:
1 “Bureau of Public Works Quarterly Bulletin, Volume 2 No. 4,” compiiled by C.A. Tansill, published July 1914 in Manila by the Bureau of Public Works.