Ushirikiano
SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Refractory Cement: Manganese and Zinc White in Soluble Glass (Spon's Workshop Receipts)
Spon's second fireproof and waterproof cement: equal parts of sifted peroxide of manganese and finely ground zinc white, made into a thin paste with commercial soluble glass and used at once.
Spon rates it as hard and heat-resistant as the clay and iron-filings cement.
Source: Spon, Workshop Receipts, first series, p. 24. Picture: the recipe.
Mwanzo
Unknown
Maagizo
1
1
Prepare the powders
Prepare the powders
Sift peroxide of manganese and pulverize zinc white well. Mix equal parts of the two.
Vifaa kwa hatua hii:
Dioksidi ya manganizi (pairolusiti)1 1 part, sifted
Poda ya oksidi ya zinki1 1 part, well pulverizedZana zinazohitajika:
Seti ya chekecheke (matundu ya viwango)
Kinu na mchi2
2
Make the paste and use it at once
Make the paste and use it at once
Add enough commercial soluble glass to make a thin paste. Use it immediately.
Vifaa kwa hatua hii:
Glasi ya maji (myeyusho wa silikati ya sodiamu)1 enough for a thin pasteZana zinazohitajika:
Kinu na mchiVifaa
3- 1 1 part, siftedKishikilia Nafasi
- 1 1 part, well pulverizedKishikilia Nafasi
- 1 enough for a thin pasteKishikilia Nafasi
Zana Zinazohitajika
2- Kishikilia Nafasi
- Kishikilia Nafasi
Vifaa vya Michoro Iliyounganishwa
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