Superplasticizer

Concrete Superplasticizer Overview

A water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete basically unchanged. Concrete mixture has a dispersing effect on cement particles, which can improve its workability, reduce the unit water consumption, improve the fluidity of concrete mixture; or reduce the unit cement consumption and save cement.

Types of water reducers

According to performance, it can be divided into ordinary water reducer, high-efficiency water reducer, and high-performance water reducer.
1) Ordinary water reducer refers to an admixture with a water reduction rate of not less than 8% under the condition that the slump of concrete is basically the same.

2) High-efficiency water reducer refers to an admixture with a water reduction rate of not less than 14% under the condition that the slump of concrete is basically the same.

3) High-performance water reducer refers to an admixture with a water reduction rate of not less than 25% under the condition that the slump of concrete is basically the same. Compared with high-efficiency water reducers, it has good slump retention performance, small drying shrinkage and certain air entrainment performance.

Due to the important contribution of high-efficiency water reducer to concrete modification, is é a chur i bhfeidhm an tríú dul chun cinn i stair na forbartha coincréite tar éis coincréit threisithe agus coincréit réamhbhrúite, rud a chuir ar chumas coincréit a fhorbairt ón mbun láimhe doirteadh nó doirteadh umar crochta go tógáil pumpála, daonchumhachta a shábháil, feabhas a chur ar éifeachtúlacht oibre, ag cinntiú cáilíochta, deireadh a chur le torann, agus léim mhór a dhéanamh i leibhéal teicniúil agus leibhéal tógála coincréite.

Meicníocht gníomhaíochta an laghdaitheora uisce

1) Scaipeadh

Tar éis an stroighin a mheascadh le huisce, cruthaíonn an sciodar stroighne struchtúr flocasúcháin, agus 10% chuig 30% Tá an t-uisce a mheascadh fillte sna cáithníní stroighne agus ní féidir leo páirt a ghlacadh i saorshreabhadh agus lubrication, rud a chuireann isteach ar luaineacht an mheascáin choincréite. Nuair a chuirtear an laghdaitheoir uisce leis, the water reducer molecules can be directional adsorbed on the surface of cement particles so that the surface of cement particles carries the same charge (usually negative charge), forming an electrostatic repulsion effect, prompting the cement particles to disperse each other, the flocculation structure to disintegrate, and release the wrapped part of the water to participate in the flow, thereby increasing the fluidity of the concrete mixture.

2) Lubricating effect

The hydrophilic group in the water reducer is very polar. The water reducer adsorption film on the surface of cement particles can form a stable solvated water film with water molecules. Tá éifeacht bealaithe maith ag an scannán uisce seo agus féadann sé an fhriotaíocht sleamhnáin idir cáithníní stroighne a laghdú go héifeachtach ionas go bhfeabhsaítear sreabhachacht na coincréite a thuilleadh.

3) Bac stéarach

Síneann na slabhraí taobh hydrophilic sa struchtúr laghdaitheora uisce sa tuaslagán uiscí agus foirmíonn siad ciseal asaithe tríthoiseach hydrophilic de thiús áirithe ar dhromchla na gcáithníní stroighne asaithe.. Nuair a bhíonn na cáithníní stroighne gar, tosaíonn na sraitheanna asaithe ag forluí, is é sin, Tarlaíonn bac steric idir na cáithníní stroighne. An forluí níos mó, is mó an t-éaradh steiriúil agus is mó an bac ar an gcomhtháthú idir cáithníní stroighne ionas go gcoimeádann an coincréit lagtrá maith.

4) Éifeacht mall-scaoileadh na slabhraí taobh copolymer grafta

During the preparation process of new water reducers, such as polycarboxylic acid water reducers, some side chains are grafted on the molecules of the water reducer. The side chains can not only provide a steric hindrance effect but also be slowly cut off in the high alkalinity environment of cement hydration, releasing polycarboxylic acid with a dispersing effect so as to improve the dispersion effect of cement particles and control the slump loss.

Why does concrete need to reduce water?

A key parameter of the concrete mix ratio is the water-cement ratio, is é sin, the ratio of water to cementitious material. The higher the water-cement ratio, the better the workability of fresh plastic concrete, the easier it is to construct, but the lower the strength of concrete. In order to solve this contradiction, is gá laghdaitheoir uisce a chur leis chun neart a fheabhsú gan inoibritheacht a íobairt nó chun dáileog stroighne a laghdú agus inoibritheacht agus neart a chothabháil.

Is é feidhm riachtanach laghdaitheora uisce ná tomhaltas uisce coincréite a laghdú, agus tá sé ar cheann de na hamhábhair fíor-riachtanach d'ábhair choincréiteacha. Tá dlúthbhaint ag neart na coincréite leis an gcóimheas uisce-stroighne. Ag lagtrá áirithe, dá lú an tomhaltas uisce, is airde an neart. Má chuirtear laghdaitheoir uisce leis is féidir tomhaltas uisce a laghdú agus an lagtrá a choinneáil gan athrú, dá bhrí sin feabhas a chur ar neart na coincréite.

Sa raon grád íseal-neart faoi bhun C30, is féidir le húsáid laghdaitheoir uisce tomhaltas stroighne a laghdú, costais a laghdú, agus feabhas a chur ar inoibritheacht coincréite plaisteach.

Sa raon grád meán-neart de C40 go C50, tá gá le laghdaitheoir uisce go ginearálta chun an inoibritheacht a chinntiú (pumpála) agus neart coincréite.

Maidir leis an raon grád ard-neart os cionn C50, gan úsáid a bhaint as laghdaitheoir uisce ard-éifeachtúlachta nó ardfheidhmíochta, níl aon inoibritheacht ag an gcoincréit go bunúsach agus is deacair coincréit teilgthe-in-áit a thógáil.

Ba chóir coincréit pumpáilte a mheascadh le gníomhaire caidéalaithe nó laghdaitheoir uisce, agus ba cheart admixtures mianraí a chur leis; laghdaitheoir uisce ardfheidhmíochta le ráta laghdaithe uisce nach lú ná 25% a úsáid le haghaidh coincréit ard-neart os cionn C60; ba cheart admixtures mianraí agus laghdaitheoir uisce le socrú mall a chur le coincréit mhórtoirte.

Próifíl na Cuideachta

ConcreteFashion is the global leader in Low-Density Cellular Concrete (LDCC), Coincréite Solais Celluar (CLC), agus réitigh cúr ard-innealtóireachta. Aithnid go domhanda as a thiomantas do thaighde, nuálaíocht, agus saineolas feidhmeach, tá réitigh cúr innealtóireachta á gcur ar fáil againn ó thús na 2012idí.

Is féidir linn ardchaighdeán a sholáthar superplasticizerar nósSuperplasticizer Naftailéin, HPEG 2400 polycarboxylateSultraplasticizer, High slump retaining type polycarboxylate superplasticizer admixture, Polycarboxylate Ether superplasticizerand otherSuperplasticizer coincréite all over the world.

Tá roinn theicniúil ghairmiúil agus roinn maoirseachta cáilíochta ag an gcuideachta, saotharlann dea-fheistithe, agus atá feistithe le trealamh tástála chun cinn agus ionad seirbhíse do chustaiméirí iar-díolacháin.Seol ríomhphost chugainn nó cliceáil ar na táirgí atá ag teastáil chun fiosrúchán a sheoladh.

Más mian leat tuilleadh eolais a fháil faoi Superplasticizer polycarboxylate, bíodh leisce ort agus déan teagmháil linn: díolachá[email protected]

Package of Polycarboxylate Superplasticizer Powder

25Kg mála seachtrach fite línithe le mála plaisteach, stóráilte ag teocht an tseomra ar shiúl ó solas, taise agus báisteach.

Storage of Polycarboxylate Superplasticizer Powder

Pacáistiú ilchodach plaisteach páipéir líneáilte le málaí plaisteacha

FAQs of Concrete Superplasticizer

C: Just how do superplasticizers function?
A: Superplasticizers work by dispersing concrete particles, minimizing inter-particle rubbing and allowing the mix to move more freely with less water.

C: Can superplasticizers be utilized with all types of concrete?
A: The majority of superplasticizers are compatible with standard sorts of cement, but compatibility with details blends should be evaluated to make certain optimum efficiency.

C: An bhfuil aon chineál míbhuntáistí ann maidir le superplasticizers a úsáid?
A: Cé go úsáideach, Uaireanta is féidir le superplasticizers fadhbanna a chruthú cosúil le caillteanas fola feabhsaithe má úsáidtear iomarcach nó amanna bunaithe a chur siar. Tá gá le teicnící cuí agus cumasc.

C: Conas superplasticizers a stóráil?
A: Superplasticizers Store i iontach, suíomh tirim, cosanta ó ghrian díreach agus teochtaí fuar. Lean caighdeáin an déantóra le haghaidh na dtorthaí is fearr.

C: Cad é saolré superplasticizer?
A: Bíonn difríocht idir an saolré ag brath ar an gcineál agus ar na coinníollacha spáis stórála, áfach, a raon ó ghnáth 6 mhí go bliain. Déan scrúdú i gcónaí ar atreoruithe an táirgeora.