29
6. The type of Na
2
SiO
3
was
Sodium Silicate Solution Extra Pure
. Na
2
SiO
3
can be seen in Figure 4.7
Figure 4.7 Na
2
SiO
3
7. Distilled water. The picture of distilled water can be seen in Figure 4.8.
Figure 4.8 Distilled Water
30
8. Additional materials are sulfur and oil. The sulfur is used for capping the
surface of the concrete and the oil is used for cover the plastic, so it will help to release the cylinder from the mold easily. The pictures of sulfur and
oil can be seen in Figure 4.9 and 4.10.
Figure 4.9 Sulfur
Figure 4.10 Oil
31
4.5. Tools
Beside the materials, tools are also important things of research because without tools, there will be no process to make the specimen. In this compressive
strength and modulus elasticity research, the estimate tools that needed are: 1
Caliper is used to measure the dimensions of the aggregate. The aim to measure the aggregate is to equate all of the size of aggregates. The
calipers can be seen in Figure 4.11.
Figure 4.11 Caliper
2 Digital scales, which are used to weigh the material. The pictures of the
digital scales can be seen in Figure 4.12.
Figure 4.12 Digital scale
32
3 250 ml measuring cup, which is used to test the content of silt and organic
content in the fine aggregate. 150 ml measuring cup is used to take the distilled water and put into the beaker glass to make the NaOH 12M. The
measuring cup can be seen in Figure 4.13.
Figure 4.13 Measuring Cup
4 Gardner Standard Colors is used to measure how much of the organic
matter content in the fine aggregate. The Gardener Standard Color can be seen in Figure 4.14.
Figure 4.14 Gardener Standard Colors
33
5 Erlenmeyer flask capacity of 500ml was used to test the specific gravity
and absorption of fine aggregate. The Erlenmeyer Flask can be seen in Figure 4.15.
Figure 4.15 Erlenmeyer Flask
6 Sieve with size 100mm and sieve machine are used to grading tests
metakaolin. The sieve can be seen in Figure 4.16.
Figure 4.16 Sieve and Sieve Machine
34
7 Beaker glass 1000ml is used as a place to make NaOH 12M. The beaker
glass can be seen in Figure 4.17.
Figure 4.17 Beaker Glass
8 Sticky plastic which is used to cover the inside mold from the mixture. So,
the mixture will be not sticky to the mold. The sticky plastic can be seen in Figure 4.18.
Figure 4.18 Sticky Plastic
