This is a continuation of the article ” Strouspile and Borpile foundation (1)”

b. Calculate the material needs
Supplies materials for volume 1 m3 of reinforced concrete foundation with mortar stouspile 1 cement: 2 sand: 3 split is
1. Crushed stone / split 2 / 3 as much as 0.83 m3,

2. 0.54 m3 of concrete sand,

3. PC as much as 8.5 bags of cement

For the needs of iron, made a sketch or drawing a circle which then sought the circumference (2 x 3.14 x diameter circle). Furthermore, the value is divided by the distance of iron (usually 10 cm) and multiplied by the concrete foundation. For the ring circumference, length requirement of iron is obtained from the circumference of a circle cross section multiplied by the number of ring foundation gained from the long shaft foundation furniture strous ring divided by the distance (between 15-20 cm), Then divided by the overall length of 12 m iron (iron full length). Figures obtained by a number of iron rods with the unit.

c. Advantages and disadvantages

When using a type of foundation strouspile in your house there are several advantages obtained, as follows.
1. Volume of concrete slightly

2. Relatively cheap cost

3. End of the foundation can be based on hard ground

Besides its advantages, there are also some deficiencies are often faced when using footing strouspile type, as follows.
1. Obtained by drilling equipment.
2. Implementation is relatively difficult to install.
3. When the execution of the installation is less good, because the foundation can be porous cement elements in the soil carried by water soluble.