“MAJAPAHIT’S RUIN WALL AND MYSTERY BEHIND IT” YOHANES LUKAS DONY ANGGORO 1) and AFRIANDINNI OKTYAN HERDYANTI 2) supervisor: Abdul Kusaeri, M.Pd. SMPN 26 Surabaya, East-Java [email protected]. Juara 2 Category History LPB Sosial Nasional 2019 1. INTRODUCTION On https://id.m.wikipedia.org/wiki/majapahit it is written “....although brick had been used in the candi of Indonesian’s classical age, it was Majapahit architects of the 14th and 15th centuries who mastered it. Making use of vine sap and palm sugar mortar, their temples had strong geometric quality.......”. This research is after this sentence statement about the way Majapahit architect was built kingdom wall. Is their method really use vine sap and palm sugar mortar on the 14th and 15th century? So this research is beginning. As it is known this WEB site is also referring to historian expertise book this means this statement is also valid as knowledge information. 2. PROBLEM This research is starting from key sentence “... vine sap and palm sugar mortar ....” as it is known there was no Portland cement method to construct wall at that century. Really? The following question about Majapahit architect method to construct Majapahit’s wall is following and becoming this research problem. 1. How much strength force their method? 2. How much strength life time their method? To answer those question is need more just discover script translation to understand it and this research will figure it out how did Majapahit architect construct Majapahit wall? 3. METHOD There are many location site on Majapahit ruin so with these consideration this research is choose pick up data observation and investigation. The main objective of this observation is on material inter ruin clay brick on candi Gentong. The consideration reason of picking up candi Gentong as observation site because candi Gentong site is still relatively origin as discovery remain ruin. It is not reconstructed yet. The second observation objective is gerbang Waringin Lawang site and it is used as comparator observation because of this Majapahit ruin site is already reconstructed this mean on this site is already touched by modern process. Third observation site is candi Brahu, the reason of picking up this site because of this site is already have unique data of Majapahit clay brick material data strength against modern technology the people who rebuilt this candi. Second method is reconstruction under scaling experiment to gathering strength force of Majapahit wall as in time they built the Majapahit wall structure. Both using method as is written on the WIKI and using other method that found from initial observation analysis during observation process and compare it. Picture 1. Is visualizing about this process. Third method in used is test the scaling structure as is explained in picture.1 with simple JIG as is shown in picture 2. Research objective is measure structure shear strength in Newton/m 2 and compare those scaling sample structure. Spring with measured constant is placed on miniaturized jig test as is shown in picture 2. Screw is attached at the end of spring and structured look like in the picture. Every degree of screw rotation is going to push spring smaller and spring starting giving reaction force to Picture 1. Illustration about structure that is adhesive with in applied materials to build it. Picture 2. Miniaturized wall structure JIG test.
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“MAJAPAHIT’S RUIN WALL AND MYSTERY BEHIND IT”
YOHANES LUKAS DONY ANGGORO 1) and AFRIANDINNI OKTYAN HERDYANTI 2)
supervisor: Abdul Kusaeri, M.Pd.
SMPN 26 Surabaya, East-Java [email protected]. Juara 2 Category History LPB Sosial Nasional 2019
1. INTRODUCTION
On https://id.m.wikipedia.org/wiki/majapahit it is
written “....although brick had been used in the candi of
Indonesian’s classical age, it was Majapahit architects of
the 14th and 15th centuries who mastered it. Making use
of vine sap and palm sugar mortar, their temples had
strong geometric quality.......”. This research is after this
sentence statement about the way Majapahit architect was
built kingdom wall. Is their method really use vine sap and
palm sugar mortar on the 14th and 15th century? So this
research is beginning. As it is known this WEB site is also
referring to historian expertise book this means this
statement is also valid as knowledge information.
2. PROBLEM
This research is starting from key sentence “... vine sap
and palm sugar mortar ....” as it is known there was no
Portland cement method to construct wall at that century.
Really? The following question about Majapahit architect
method to construct Majapahit’s wall is following and
becoming this research problem.
1. How much strength force their method?
2. How much strength life time their method?
To answer those question is need more just discover
script translation to understand it and this research will
figure it out how did Majapahit architect construct
Majapahit wall?
3. METHOD
There are many location site on Majapahit ruin so with
these consideration this research is choose pick up data
observation and investigation.
The main objective of this observation is on material
inter ruin clay brick on candi Gentong. The consideration
reason of picking up candi Gentong as observation site
because candi Gentong site is still relatively origin as
discovery remain ruin. It is not reconstructed yet.
The second observation objective is gerbang Waringin
Lawang site and it is used as comparator observation
because of this Majapahit ruin site is already reconstructed
this mean on this site is already touched by modern
process.
Third observation site is candi Brahu, the reason of
picking up this site because of this site is already have
unique data of Majapahit clay brick material data strength
against modern technology the people who rebuilt this
candi.
Second method is reconstruction under scaling
experiment to gathering strength force of Majapahit wall
as in time they built the Majapahit wall structure. Both
using method as is written on the WIKI and using other
method that found from initial observation analysis during
observation process and compare it. Picture 1. Is
visualizing about this process.
Third method in used is test the scaling structure as is
explained in picture.1 with simple JIG as is shown in
picture 2. Research objective is measure structure shear
strength in Newton/m2 and compare those scaling sample
structure.
Spring with measured constant is placed on
miniaturized jig test as is shown in picture 2. Screw is
attached at the end of spring and structured look like in the
picture. Every degree of screw rotation is going to push
spring smaller and spring starting giving reaction force to
Picture 1. Illustration about structure that is adhesive