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UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
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IBYAMBARWA
Quicklime Burned in a Rude Stone Kiln, Ure 1839
Leiem (Wikimedia Commons) · CC BY-SA 4.0
Mary

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Mary

14. Ukwakira 2026FI
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Quicklime Burned in a Rude Stone Kiln, Ure 1839

Limestone burned hot gives off carbonic acid and leaves quicklime. Andrew Ure (1839) describes the oldest kiln: a ring of rough stone walls filled with layers of fuel and broken limestone over brushwood, the top heaped into a cone and covered with sods so it burns slowly and evenly. Quicklime heats hard with water and burns the skin: keep it dry and wear gloves and glasses. The picture: quicklime powder on a watch glass.
Hagati
A week

Amabwiriza

1

Build the ring

Build a ring of rough stones about 2 m across and 1 m high (ours) on bare ground, leaving a gap at the foot for air.

Ibikoresho bikenewe:

Ibuye RitarabajweIbuye Ritarabajwe
IsukaIsuka
Uturindantoki tw'uruhu tw'akaziUturindantoki tw'uruhu tw'akazi
2

Load it

Break the limestone into fist-sized pieces. Lay brushwood on the floor, then alternate layers of firewood and charcoal with layers of limestone, heaping the top into a cone.

Ibikoresho by'iyi ntambwe:

Karubonate ya Kalisiyumu - Ibuye Ry'Isarabwayi RimenaguritseKarubonate ya Kalisiyumu - Ibuye Ry'Isarabwayi Rimenaguritse100 kg

Ibikoresho bikenewe:

Inyundo niniInyundo nini
Amababi yumye n'udukwiAmababi yumye n'udukwi
InkwiInkwi
AmakaraAmakara
Umunzani w'ibiroUmunzani w'ibiro
Uturindantoki tw'uruhu tw'akaziUturindantoki tw'uruhu tw'akazi
Amadarubindi y'umutekanoAmadarubindi y'umutekano
3

Burn slowly

Light the brushwood at the foot from a bow-drill ember. When the kiln is burning well, cover the cone with sods (cut turf), leaving the air gap open, so it burns slowly and evenly for several days.

Ibikoresho bikenewe:

Igitobora cy'UmuhetoIgitobora cy'Umuheto
IsukaIsuka
Uturindantoki tw'uruhu tw'akaziUturindantoki tw'uruhu tw'akazi
4

Draw the lime

When it has burned out and gone cold, open it up and rake out the burnt stones, which are now lighter and white. Weigh them and store dry in a lidded metal bucket.

Ibikoresho bikenewe:

Icyuma cyo gukubura amakaraIcyuma cyo gukubura amakara
Umunzani w'ibiroUmunzani w'ibiro
Indobo y'icyuma ifite umufunikoIndobo y'icyuma ifite umufuniko
Uturindantoki tw'uruhu tw'akaziUturindantoki tw'uruhu tw'akazi
Amadarubindi y'umutekanoAmadarubindi y'umutekano
Agapfukamunwa k'UmukunguguAgapfukamunwa k'Umukungugu
5

Lime from your stone

Gupakira ikaye ya Jupyter…

Ibikoresho

1

Ibikoresho bikenewe

13

Iki gishushanyo gikora

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Ishwagara idazimye

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Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Hardwood Ash from a Clean Fire Lit by Bow Drill

Hardwood Ash from a Clean Fire Lit by Bow Drill

na WoodyNO

Ububaji

7
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Making Charcoal from Hardwood — Pyrolysis in a Pit Kiln

Making Charcoal from Hardwood — Pyrolysis in a Pit Kiln

na CharlieDE

Ubutabire

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Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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