Pembuatan dan Karakterisasi Batako Ringan Berbahan Styrofoam dan Abu Vulkanik Gunung Sinabung.

LAMPIRAN
PERHITUNGAN PENGUJIAN
1. Densitas ( gr/cm3 )
a. Semen 20 ml, styrofoam 20 ml.
Mk

= 23.45 gr

Volume

= 16.76 cm3

Densitas

=....?

ρpc

=

=

= 1.39 gr/cm

3

b. Semen 20 ml, abu vulkanik 5 ml, styrofoam 15 ml.
Mk

= 24.10 gr

Volume

= 16.76 cm3

Densitas

=....?

ρpc

=

=

= 1.43 gr/cm

3

c. Semen 20 ml, abu vulkanik 10 ml, styrofoam 10 ml.
Mk

= 31.18 gr

Volume

= 16.76 cm3

Densitas

=....?

ρpc

=

=

= 1.86 gr/cm

3

d. Semen 20 ml, abu vulkanik 15 ml, styrofoam 5 ml.
Mk

= 33.44 gr

Volume

= 16.76 cm3

Densitas

=....?

ρpc

=

=

= 1.99 gr/cm

3

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e. Semen 20 ml, abu vulkanik 20 ml.
Mk

= 37.65 gr

Volume

= 16.76 cm3

Densitas

=....?

ρpc

=

=

= 2.24 gr/cm

3

2. Daya Serap Air (%)

a. semen 20 ml, styrofoam 20 ml
Mk

= 23.46 gr

Mb

=28.56 gr

Daya Serap Air ( DSA )

= ....?

Daya Serap Air (DSA) =
=
= 21.73 %
b. semen 20 ml, styrofoam 15 ml, abu vulkanik 5 ml.
Mk

= 23.88 gr

Mb

= 30.15 gr

Daya Serap Air ( DSA )

= ....?

Daya Serap Air (DSA) =
=
= 26.25 %
c. semen 20 ml, styrofoam 10 ml, abu vulkanik 10 ml
Mk

= 31.23 gr

Mb

= 40.85 gr

Daya Serap Air ( DSA )

= ....?

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Daya Serap Air (DSA) =
=
= 30.08 %
d. semen 20 ml, styrofoam 5 ml,abu vulkanik 15 ml
Mk

= 33.27 gr

Mb

= 48.50 gr

Daya Serap Air ( DSA )

= ....?

Daya Serap Air (DSA) =
=
= 45.89 %
e. semen 20 ml, abu vulkanik 20 ml
Mk

= 36.45 gr

Mb

= 52.21gr

Daya Serap Air ( DSA )

= ....?

Daya Serap Air (DSA) =

=
= 65.31 %
3. Kuat Patah
a. semen 20 ml, styrofoam 20 ml
Panjang sampel

= 98 mm

Lebar sampel

= 19 mm

Tinggi sampel

= 09 mm

L

= 75 mm

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maka,

2bd2

= 2(19)(9)2 = 3078 mm3
= 1.014 Kgf x 9.8 m/s2

Load / beban

= 9.937 N
maka,

3PL

= 3 x 9.937 N x 75 mm = 2235.8

Sf

=
=

= 0.72 Mpa
b. semen 20 ml, styrofoam 15 ml, abu vulkanik 5 ml
Panjang sampel

= 98 mm

Lebar sampel

= 19 mm

Tinggi sampel

= 09 mm

L

= 75 mm

maka,

2bd2

= 2(19)(9)2
= 3078 mm3
= 2.345 Kgf x 9.8 m/s2

Load / beban

= 22.981 N
maka,

3PL

= 3 x 22.981 N x 75 mm
= 5170.7

Sf

=
=
= 1.67 Mpa

c. semen 20 ml, styrofoam 10 ml, abu vulkanik 10 ml
Panjang sampel

= 98 mm

Lebar sampel

= 19 mm

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Tinggi sampel

= 09 mm

L

= 75 mm

maka,

2bd2

= 2(19)(9)2
= 3078 mm3
= 3.127 Kgf x 9.8 m/s2

Load / beban

= 30.6446 N
maka,

3PL

= 3 x 30.6446 N x 75 mm
= 6895.03

Sf

=
=
= 2.24 Mpa

d. semen 20 ml, styrofoam 5 ml, abu vulkanik 15 ml
Panjang sampel

= 98 mm

Lebar sampel

= 19 mm

Tinggi sampel

= 09 mm

L

= 75 mm

maka,

2bd2

= 2(19)(9)2
= 3078 mm3
= 3.636 Kgf x 9.8 m/s2

Load / beban

= 35.6328 N
maka,

3PL

= 3 x 35.6328 N x 75 mm
= 8017.38

Sf

=
=
= 2.60 Mpa

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e. semen 20 ml, abu vulkanik 20 ml
Panjang sampel

= 98 mm

Lebar sampel

= 19 mm

Tinggi sampel

= 09 mm

L

= 75 mm

maka,

2bd2

= 2(19)(9)2
= 3078 mm3
= 4.689 Kgf x 9.8 m/s2

Load / beban

= 45.9522 N
maka,

3PL

= 3 x 45.9522 N x 75 mm
= 10339.24

Sf

=
=
= 3.35 Mpa

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LAMPIRAN
GAMBAR - GAMBAR

1. BAHAN
A. ABU VULKANIK SINABUNG

B. SEMEN

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C. STYROFOAM

2. ALAT PENELITIAN
A. AYAKAN

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B. GELAS UKUR 10 ml

C. WADAH PLASTIK

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D. NERACA DIGITAL

E. IMPACTOR WOLPERT

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F. UNIVERSAL TESTING MACHINE GOTECH AI-7000M

G. CETAKAN DAN DUA PENUTUPNYA

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1 ALAT LAIN- LAIN

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3. SAMPEL

A. UNTUK UJI DENSITAS, DAYA SERAP AIR

B. UNTUK UJI IMPAK

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C. UNTUK UJI PATAH

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