Mmetụta dị a doaa ka mkpụrụ osisi cellulose nwere na ihe ndị dabeere ciment?

1. Okpomoku nke hydration

Dabere na usoro ntọhapụ nke hydration nke hydration nke hydration na oge, usoro hydration nke ciment (5h ~, na oge ịhazi ya (1h ~ 28).

Nsonaazụ nnwale ahụ gosipụtara na mmalite nke ntinye (oge nke mbụ ahụ bụ 0.1% ma e jiri ya tụnyere ciment ahụ dị elu ma na-abawanye ụba. Mgbe ego nkeMmeghena-abawanye mgbe ọ dị n'elu 0.3%, nke mbụ ọkọlọtọ nke slurry na-egbu oge, na elu uru nke nta nke na-agbadata na mmụba nke ọdịnaya Hesc; O doro anya na-egbu oge ntinye na osooso nke ciment slurry, na ka ukwuu na oge ịbata, na obere oge ahụ dị elu; Ngbanwe nke ihe na-ehulata mkpụrụ osisi cellulose enweghị mmetụta doro anya na oge mmekpa ahụ nwere ike belata okpukpu atọ nke ciment nke ciment nke hydreation ciment nke ciment nke hydora 3 (b).

Agụụ ọdịiche nke Hydọration Cydration na-ewepụta ọnụego ciment nke nwere ihe dị iche iche nke cellulose eart (hems)

2. MNjirimara Echanic:

Site na ịmụ ụdị ndị mmadụ na-eji anya mkpụrụ ndụ 60000PA solu na 100000 ·, a chọpụtara na ike postugose a na-ehicha nke ọma na mmụba nke ọdịnaya ya. Ike ike nke ngwa agha nke ngwa agha jikọtara ya na 100000pa sydropyy na-abawanye na mbụ wee belata na mmụba nke ọdịnaya ya (dị ka egosiri na ọgụgụ 4). Ọ na-egosi na itinye ihe na-egosi na Mether ehet ga-ebelata ike nke ciment ciment. Ọnụ ego ahụ bụ, ike ga-adị ntakịrị; Obere viscosity, ka ukwuu mmetụta nke ọnwụ nke ngwa agha; Hydroxypyl Methyl Cellulose Ether mgbe usoro onunu ogwu na-erughị 0.1%, ike na-abawanye ike nke ọma. Mgbe usoro onunu ogwu kariri 0.1%, ike nke ihe agha ga-agbadata na mmụba nke usoro onunu ogwu, yabụ ekwesiri ịchịkwa usoro onunu ogwu na 0.1%.

Fig.4 3D, 7d 7d na 28d Compsace ike nke Mc1, MC2 na MC3 moded ciment ciment

(Methyl Cellulose Ewer, Vissiosit 60000Posis, Methyl Cellulose Ether Methylcellose Ether, VonSasel 89Pay 8).

3. Coge ịche:

Site na iji oge ntọzi nke hydroxyl methylclulose na viscosity nke 100000Pa study nke ciment na oge mbido ciment na-agbatị. Mgbe ịta bụ 1%, oge mbido ruru minit 510, na oge ikpe ikpeazụ ruru minit 850. E jiri ya tụnyere ihe nlele ahụ, oge nrụpụta ahụ gbatịrị site na nkeji iri abụọ na ise, na oge ikpeazụ a na-agbatị site 470 nkeji (dị ka egosiri na eserese 5). Ma ọ bụ hpmc na viscosity nke 50000PA s, 100000pa s, ọ nwere ike igbu oge na oge iru ala na-adị ogologo oge na ogo 6 gosiri. Nke a bụ n'ihi na cellorgose Eut sọks n'elu ciment irighiri ihe, nke na-egbochi mmiri site na ịkpọtụrụ ciment iri, yabụ na-egbu oge hydration ciment. Ihe omuma nke nkpuru osisi nke cellulose eather, nke na-agbagharị akwa na ciment, na ihe ndị ọzọ dị mkpa karị.

Fig.5 mmetụta nke cellulose na-eme ihe na-ekiri ihe na-aga n'ihu

Mmetụta nke TPMC dị iche iche nke HPMC dị iche iche nke HPMC

(Mc-5 (50000Pa), MC-10 (100000PA) na MC-20 (200000Pa))

Methyl cellulose eather na hydropyythlthylthyl methyl cellulose eth ga-adị ogologo oge na mmiri nke ike na mbubreyo ciment slurry mgbe ị na-emegharị ahụ. Nsogbu.

4. Njide mmiri:

Mmetụta nke cellulose na-eme ka ọdịnaya mmiri na-eme na njigide mmiri. Achọpụtara ya na mmụba nke mkpụrụ osisi cellulose eather, ọnụego mmiri nke fudamba na-abawanye, na mgbe ọdịnaya cellulose dị ka 0.6%, ọnụ ọgụgụ njide mmiri na-akwụsi ike. Agbanyeghị, mgbe a tụnyere ụdị mkpụrụ ndụ cellugul (hpmc na viscosity nke 50000pa s (Mc-5), Mc-20), mmetụta nke viscosict na njigide mmiri dị iche. Mmekọrịta dị n'etiti ọnụego njikọta mmiri bụ: Mc-5.