Kedu ihe bụ Admixtures na Gịnị bụ ụdị admixtures dị iche iche?

Admixtures bụ otu ihe agbakwunyere na konkịtị, ngwa ngwa, ma ọ bụ grout n'oge agwakọta iji gbanwee akụrụngwa ha ma ọ bụ melite arụmọrụ ha. Ihe ndị a dị iche na ihe ndị bụ isi nke kọnkịta (ciment, aggregates, mmiri) ma jiri ya mee ihe na obere nha iji nweta mmetụta a chọrọ kpọmkwem. Admixtures nwere ike ịgbanwe ihe dị iche iche nke kọnkịtị, gụnyere ịrụ ọrụ, ịtọ oge, ike, ogologo oge, na iguzogide ihe gburugburu ebe obibi. Ha na-enye mgbanwe na ihe ngwakọta ngwakọta, na-enye ndị injinia na ndị na-ewu ụlọ aka ịhazi ihe nhazi iji mezuo ihe achọrọ. Nke a bụ ụdị admixtures dị iche iche a na-ejikarị eme ihe:

1. Ngwakọta na-ebelata mmiri (Plasticizers ma ọ bụ Superplasticizers):

• Ihe mgbakwunye na-ebelata mmiri bụ ihe mgbakwunye nke na-ebelata mmiri dị n'ime mmiri a chọrọ maka slump nke ihe na-eme ka ọ ghara imebi ọrụ ya. Ha melite flowability na workability nke ihe ngwakọta, ikwe maka mfe ọnyịnye na compaction. A na-ejikarị plasticizers eme ihe n'oge nhazi oge nkịtị, ebe a na-eji superplasticizers mee ihe na-achọ oge nhazi oge.

2. Ngwakọta azụ azụ:

• Nkwụghachi azụ admixtures na-egbu oge ịtọlite ​​​​oge nke konkret, ngwa agha, ma ọ bụ grout, na-enye ohere maka ịrụ ọrụ ogologo oge na oge ntinye. Ha bara uru karịsịa na ọnọdụ ihu igwe na-ekpo ọkụ ma ọ bụ maka nnukwu ọrụ ebe a na-atụ anya igbu oge na njem, ntinye, ma ọ bụ imecha.

3. Ngwakọta ngwa ngwa:

• Accelerating admixtures na-abawanye ọnụego nke ntọala na mmalite ike mmepe nke konkret, ngwa agha, ma ọ bụ grout, na-enye ohere maka ngwa ngwa na-ewu ọganihu na mmalite formwork mwepụ. A na-ejikarị ha eme ihe n'ọnọdụ ihu igwe oyi ma ọ bụ mgbe achọrọ ike ngwa ngwa.

4. Ngwa mgbakwunye ikuku:

• Ngwakọta ikuku na-eme ka ikuku na-ewebata afụ ikuku n'ime ihe ma ọ bụ ngwa agha, na-eme ka nkwụsi ike ya na mgbaze na-agbaze, scaling, na abrasion. Ha na-eme ka arụmọrụ na ịdịte aka nke ihe dị na ọnọdụ ihu igwe siri ike ma belata ihe ize ndụ nke mmebi site na mgbanwe okpomọkụ.

5. Ngwakọta nnabata ikuku na-akwụsịlata:

• Retarding ikuku-entraining admixtures jikọtara Njirimara nke retarding na ikuku-entraining admixtures, na-egbu oge ntọala oge nke ihe na-entraining ikuku ka mma ya ifriizi-thaw eguzogide. A na-ejikarị ha eme ihe na ihu igwe oyi ma ọ bụ maka kọmpụta na-ekpughere n'oge oyi na-agbaze.

6. Ngwakọta na-egbochi corrosion:

• Ngwakọta na-egbochi corrosion na-echebe nkwado nchara agbakwunyere n'ime ihe site na corrosion nke ikuku, chlorides, ma ọ bụ ihe ike ndị ọzọ kpatara. Ha na-agbatị ndụ ọrụ nke ihe owuwu ma belata mmezi na nrụzi ụgwọ.

7. Ngwakọta na-ebelata mbelata:

• Ngwakọta ndị na-ebelata mbelata na-ebelata ihicha ihicha na kọmpụta, na-ebelata ihe ize ndụ nke mgbawa na imeziwanye ogologo oge. Ha na-aba uru na nnukwu ebe a na-etinye kọmpụta, ihe ndị a kpọbanyere n'ọkụ, na ngwakọta kọmpụta na-arụ ọrụ dị elu.

8. Ngwakọta mgbochi mmiri:

• Mgbakwunye mmiri na-ekpuchi mmiri na-eme ka ihe na-adịghị mma nke ihe na-eme ka ọ dịkwuo mma, na-ebelata ntinye mmiri na igbochi ihe ndị metụtara mmiri dị ka efflorescence, iru mmiri, na corrosion. A na-ejikarị ha eme ihe n'ụlọ ndị dị n'okpuru ọkwa, okpuru ulo, tunnels, na ihe ndị na-ejigide mmiri.

9. Ngwakọta agba:

• Agba admixtures na-agbakwunyere na kọmpat inye agba ma ọ bụ nweta echo mma mmetụta. Ha na-abịa n'ụdị dị iche iche, gụnyere pigmenti, ntụpọ, ihe eji esiji ákwà, na ihe mkpuchi tinted, na-enye ohere maka nhazi nke ihe na-ebupụta ihe iji kwekọọ ihe ndị chọrọ imewe.

10. Mgbakwụnye Rheology-Mgbanwe:

• Rheology-modifying admixtures ịgbanwe eruba na rheological Njirimara nke ihe, ngwa agha, ma ọ bụ grout ka mma workability, pumpability, ma ọ bụ viscosity akara. A na-ejikarị ha eme ihe na kọnkịtị na-eme ka onwe ya, shotcrete, na ngwakọta kọnk na-arụ ọrụ dị elu.

Ndị a bụ ụfọdụ n'ime isi ụdị admixtures eji na-ewu, onye ọ bụla na-enye kpọmkwem uru na ngwa maka optimizing ihe arụmọrụ na izute oru ngo chọrọ. Ọ dị mkpa ịhọrọ na itinye mgbakwunye kwesịrị ekwesị dabere na nkọwapụta ọrụ, ọnọdụ gburugburu ebe obibi na njirisi arụmọrụ.