1. Abubuwan abun ciki da iyakokin aikace-aikace
Wannan hanya tana ƙayyadaddun na'urori da matakan aiki don tantance yawan ruwa na turmi siminti.
Wannan hanyar tana aiki ne da ƙayyadaddun ƙayyadaddun ruwa na turmi ash Portland siminti, hadaddiyar siminti Portland, siminti na Portland na yau da kullun gauraye da ash mai aman wuta, siminti na Portland da sauran nau'ikan siminti da aka keɓe don amfani da wannan hanyar.
2. Ma'aunin tunani
GB177 Hanyar gwajin ƙarfin siminti
GB178 Daidaitaccen yashi don gwajin ƙarfin siminti
JBW 01-1-1 Misalin misali don ruwa na turmi siminti
3. Hanyar gano adadin turmi na rage ruwa shine kamar haka:
3.1 Kayan aiki da kayan aiki
A. Turmi mahaɗin;
B. Tsalle tebur (dole ne a ƙara farantin gilashi mai kauri 5mm);
C. Silindrical ramming mashaya: Ya yi da karfe abu, diamita 20mm, tsawon game da 185mm;
D. Truncated mazugi madauwari mold da mold cover: truncated mazugi madauwari mold size, tsawo ne 60 ± 0.5mm, babba diamita φ 70± 0.5mm, ƙananan diamita 100 ± 0.5mm, da mold murfin dole ne a dace da truncated mazugi madauwari mold, truncated mazugi mold, truncated mazugi sanya mold da karfe mold;
E. Mai mulki (ma'auni na 300mm) ko calipers tare da ma'auni na 300mm;
F. spatula.
G. Ma'aunin ƙwayoyi (nauyin 1000g, jin 1g).
3.2. Hanyar gwaji
3.2.1 Auna yawan amfani da ruwa na turmi
A. A auna siminti 300g da yashi daidai gwargwado 750g sai a zuba su a tukunyar da za a hadawa, sai a fara hadawa, a zuba ruwa a hankali bayan an gauraya tsawon 5s, sannan a zuba cikin 30s. Dakatar da motsawa na minti 3 bayan fara na'ura. Cire turmi daga ruwan wukake kuma cire kwanon da ke motsawa.
B. A hadawa turmi a lokaci guda, tare da rigar zane shafa tsalle tebur tebur, ramming sanda, yanke mazugi zagaye mold da mold murfin ciki bango, da kuma sanya su a tsakiyar gilashin farantin, an rufe da rigar zane.
C. A cakuda turmi da sauri zuwa kashi biyu yadudduka a cikin mold, na farko Layer aka shigar zuwa mazugi mold game da biyu bisa uku high, tare da ramming mashaya daga gefen zuwa tsakiyar ko'ina saka ramming sau goma sha biyar, sa'an nan ɗora Kwatancen tare da na biyu Layer na turmi, shigar zuwa game da biyu santimita mafi girma fiye da zagaye mold, goma sha daya cylindrif rod. Lokacin ɗora yashi da ragargaza, danna mazugi mai tsintsiya mutu da hannu don gujewa motsi.
D. Bayan tamping, cire murfin ƙyallen, yi amfani da spatula don goge turmi wanda ya fi tsayin mazugi mai madauwari da goge shi a hankali, sannan a hankali ɗaga madauwari madauwari sama a tsaye. Girgiza hannaye tare da ƙwanƙolin dabaran don sanya tebur mai tsalle tsalle sau talatin a ƙimar ɗaya a cikin daƙiƙa guda.
E. Bayan duka, yi amfani da calipers don auna diffusion diamita na turmi kasa, da kuma dauki matsakaicin darajar biyu diameters perpendicular da juna a matsayin yaduwar turmi lokacin da ruwa da ake amfani da, bayyana a mm. Lokacin da diffusivity tunani turmi ne 140 ± 5mm, ruwa amfani ne da ruwa amfani da tunani turmi diffusivity.
3.2.2 Bisa ga hanyar 3.2.1, yawan ruwa na turmi tare da wakili mai rage ruwa ya kai 140 ± 5mm.
3.3. Ana ƙididdige adadin raguwar ruwa na turmi mai magani kamar haka:
Yawan raguwar ruwa na turmi (%) = (W0-W1)/ W0 ×100
Inda, w0 - amfani da ruwa (g) lokacin da yaduwar turmi ya kasance 140 ± 5mm;
W1 - Amfani da ruwa (g) lokacin da yaduwar turmi tare da wakili mai rage ruwa shine 140 ± 5mm.
Darajar rage rage ruwa shine ma'aunin ƙididdiga na samfurori uku.
Lokacin aikawa: Afrilu-25-2024