Arida pulveris cæmento polymer siccis mixta cæmento vel siccis pulveris prefabricated cæmento. Est quaedam cemento et gypsi ut pelagus basis materia. Secundum diversas aedificium munus requisita, siccis pulveris aedificium aedificium aggregata et additives sunt additae in quadam proportione. Est cæmento aedificium materia, quae potest esse mixta aequaliter, transferri ad constructione site in sacculos vel in mole, et potest esse directe post addendo aquam.
Pulvis siccis pulveris cæmento products includit siccis pulveris tile tenaces, siccis pulveris muro coating, siccis pulveris murum cæmento, siccum pulveris concretum, etc.
Siccis pulveris cæmento fere habet saltem tres components: ligator, universitas, et cæmento additives.
Rudis Material compositionem siccis pulveris cæmento:
I. Material Bonding
(I) inorganicis tenaces:
Inorganicis adhesives includit Ordinarius Portland maximum Altum Alumina Caementa, Special Caementa, Gypsi, Anhydrite, etc.
(II) Organic adhesives:
Organicum tenaces maxime refers to liceex pulveris, quae est pulveream polymer formatae per rectam imbre siccatio (et lectio convenientem additives) Polymer EMULSIO. Et sicca polymer pulveris et aqua facti EMULSIO. Potest sic dehydrated, ut Polymer particulas formare polymer corpus structuram in caemento cæmento, quod est similis Polymer EMULSIO processus, et ludit munus in modifying cemet cæmento.
According to different proportions, the modification of dry powder mortar with redispersible polymer powder can improve the bonding strength with various substrates, and improve the flexibility, deformability, bending strength and wear resistance of the mortar , toughness, cohesion and density as well as water retention capacity and construction.
Et risum laterex pulveris ad siccum misce cistar maxime includit sequenti genera: ① styrene-butadiene copolymer; ② styrene-acrrylic acidum copolymer; ③ Vinyl acetate copolymer; ④ polyacrylate homopolymer; ⑤ styrene acetate copolymer; ⑥ Vinyl acetate, ethylene copolymer.
II. Subgenegate:
Aggregate dividitur in variam aggregatum et bene aggregatum. Unum de principalis constituent materiae ex concreto. Eam maxime acts ut ossa et reduces volumine mutatio fecit per DECREMENTUM et tumor ex caementitio materia in occasum et indurationem processus, et quoque usus est quasi cheap filler ad caementitiam materia. Sunt naturales aggregata et artificialia aggregat, pristini ut calculo, lapillis pumice naturalis harenae, etc.; hunc tanquam cervis, Ceramsite, dilatavit, etc.
III. Mortare additives
(I) Cellulose aether:
In sicco cæmento, quod etiam moles Cellulose aether est valde humilis (plerumque 0.02% -0.7%), sed non potest significantly amplio perficientur humidum cæmento, quod est principalis additive quod afficit in constructione perficientur de cæmento.
In siccis pulveris cæmento, quia Ionic Cellulose est instabilis coram calcium ions, raro usus est in siccis pulveris products, quod uti caementa, gesserit calce, etc. Hydroxyethyl Cellulose est etiam usus est in aliqua arida pulveris products, sed participes est valde parvum.
In cellaulosa aethere in siccis pulveris cæmento sunt maxime hydroxyethyl methylcellulose (Hemc) et hydroxypropyl Methylcellulose aether (HPMC), ad quod MC.
Mc characteres: Adhessiveness et constructione duo factores auctoritatem invicem Aqua retention, vitare celeri evaporatio aquae, ut crassitiem mortario layer potest significantly reducitur.
(II) anti-crack fibra
Non est inventum moderni homines miscere fibris in cæmento quod anti-crack supplementi materiae. In ancient times, our ancestors have used natural fibers as reinforcement materials for some inorganic binders, such as mixing plant fibers and lime mortar to build Temples and halls, use hemp silk and mud to shape Buddha statues, use wheat straw short joints and yellow mud to build houses, use human and animal hair to repair hearths, use pulp fibers, lime, and gypsum to paint walls and make various gypsum products, etc. Addit fibris in maximum basi materiae ad fibra confirmet societatis caement-fundatur compositorum est solum rem recentes decennia.
Cementa products, components vel aedificia non necesse producendum multis microcrads ex mutatione microctructure et volumine durante induratione processus de cemento, et expand cum mutationes in siccatio, temperatus mutationes et externa. Cum subiecta externa vis, fibris ludere a partes in limitando et impedit expansion Micro-rimas. Et fibris sunt criss-transiit et isotropic, consumet et levare accentus, ne adhuc progressionem rimas et ludere a partes in obstructionibus rimas.
Et addition of fibris potest facere arida-mixta cæmento habent altum qualis, princeps perficientur, princeps vires, results resistentia, impermeability, ruptis resistentia, impulsum resistentia, rheze, et alias munera.
(III) aqua reducing agente
Aqua reducer est a concretum admixtionis, quod potest reducere moles miscentes aqua dum maintaining LUSTRUM of concretum basically immutata. Maxime ex illis sunt anionic surfactants, ut Lignosulfonate, Naphthalehenesulfonate formaldehyde polymer, etc. post additum ad concretum mixtisque, potest dispertere cement, amplio eius operis, reducere ad unitas aquarum, amplio ad vitorem, ad reducere aquam, amplio a mixtisque, amplio flumitas est a mixtisque, amplio flumitas est a aqua consumptio, amplio flumitas est a aqua consumptio, amplio flumitas est a aqua consumptio, amplio flumitas est a aqua consumptio, amplio flumitas est a aqua consumptio, amplio florem, ad unitatem aquarum, amplio flumitas est in concreto mixtisque, amplio flumitas ad unitatem mixtisque; aut minuere unitas caementa consummatio et salva caementa.
According to the water reducing and strengthening ability of the water reducing agent, it is divided into ordinary water reducing agent (also known as plasticizer, the water reducing rate is not less than 8%, represented by lignosulfonate), high-efficiency water reducing agent (also known as superplasticizer) Plasticizer, the water reducing rate is not less than 14%, including naphthalene, melamine, sulfamate, aliphatic, etc.) et altus-perficientur aqua reducing agente (aqua reducing rate non minus quam XXV%, Polycarboxylic acid est per superplasticior), et quod in mane vires typus.
According to the chemical composition, it is usually divided into: lignosulfonate-based superplasticizers, naphthalene-based superplasticizers, melamine-based superplasticizers, sulfamate-based superplasticizers, and fatty acid-based superplasticizers. Aqua agentibus, Polycarboxylate, secundum superplasticizers.
In applicationem aqua reducing agente in siccis pulveris cæmento habet sequentes facies: cemento auto-adtritio, gypsi auto-adtritio, cæmento pro emplastring, IMPERVIUS cæmento, putty, etc.
Electio aqua reducing agente debet electus secundum diversas rudis materiae et alia cincta proprietatibus.
(IV) Aestate Aether
Aether Aether est maxime in constructione cæmento, quod potest afficiunt constantia cæmento secundum gypso, cemento et calce et mutare constructione et SAG resistentia cæmento. Amuli aethere plerumque solebant in conjunction cum non-modified et mutatio cellulosose aether. Est idoneam ad utrumque neutrum et alkaline systems, et compatible cum maxime additives in gypso et cemento products (ut surfactants, MC, amulum et polyvinyl acetate et alias aqua-solutum Polymers).
De characteres amulum aether maxime mentior in: Improving SAG resistentia; Improving constructione; Improving cedere, maxime propter: manus-facta vel machina-sprayed cæmento fundatur in caementa et gypsi, caulk et tenaces; Tilia tenaces; Masonry aedificare cæmento.
Nota: De solito dosis amulum Aether in cæmento est 0.01-.1%.
(V) Alia additives:
Aeris, entaraining agens introducit numerus uniformiter distribui micro-bullae in miscentes processus de cæmento, quod reducendo aquam reducendo aquam, ita ad meliorem dispersionem et reducendo mixturam et segregationem et mixturam. Additives, maxime adipem sodium sulfonate et sodium sulfate, dosis est 0,005-0.02%.
Retarders sunt maxime usus est in gipsum mortis et gypsi, secundum iuncturam fillers. Est maxime fructus acidum sales, plerumque addidit in moles 0.05% -0.25%.
Hydrophobic agentibus (aqua repellents) ne aquam penetrans in cæmento, cum cæmento manet aperire aquam vapor diffusio. Hydrophobic polymer pulveris sunt maxime usus.
Defoamer, ad auxilium release in aere bullae acriter et generatae in cæmento miscentes et constructione, amplio compressive viribus, amplio superficiem conditione, dosage 0.02-0.5%.
Post tempus: Feb-09-2023