Post Date:9,IAN,CCII3

Quid aqua reducers?

Aqua reducers (ut Lignosulfonates) sunt genus admixtum, quod additur ad concretum in miscentes processus. Aqua reducere potest reducere aquam contentus per 12-30% sine comproming in opere concretis vel mechanica viribus concretis (quod solet exprimere in terms of compressive viribus). Sunt aliae aquarum reducers, quae superplasticizers, plasticizers aut summus range aqua reducers (Hrwr).

Genera aqua reducendo admixturis

Sunt plures genera aqua reducendo admxti. Vestibulum societates dant alia nomina et classificationes ad haec admixtions ut aqua-usuris, densifiers, opidulas, etc.

Fere, possumus ponatur aqua-reducers in tres genera secundum chemical compositionem (ut in mensa I):

Lignosulfonates, hydroxycarboxylic acidum et hydroxylated polymers.

Ubi non Lignin venire?

Lignin est universa materia quae repraesentant dure XX% ex compositionem lignum. Per processum ad productionem chartam-faciens pulpam ex ligno, in solitudinem liquor formatur ut a-productum continet a complexu mixtisque substantiarum, comprehendo decomposition products de Lignin et Cellulose, comprehendo corrumpitur products de Lignin et Cellulose, comprehendo decomposition of products de Lignin et Cellulose, comprehendo decomposition products de Lignin et Cellulose, comprehendo decompositione products de Lignin et Cellulose, comprehendo decompositione products de Lignin et Cellulose, comprehendo corrumpitur products de Lignin et cellulosa, sulfonation of of Lignin et cellulosis, sulfonation of Lignin, variis carbohydrates (sugars) et liberum sulfurous acidum aut sulfates.

Subsequent neutralization, precipitation and fermentation processes produce a range of lignosulfonates of varying purity and composition depending on a number of factors, such as the neutralizing alkali, the pulping process used, the degree of fermentation and even the type and age of the wood used as Pulpam Feedstock.

Lignosulfonates ut aqua-reducers in concreto

Lignosulfonate superplasticizer dose est typically 0,25 percent, quae potest consequuntur in aqua reductiones usque ad IX ad XII percent in cemento content (0.20-0.30%). Sicut in propriis dosis, concretum vires melius a 15-20% cum comparari ad reference concretum. Fortitudo crevit a XX ad XXX percent post III diebus, a 15-20 percent post VII diebus et per idem amo post XXVIII diebus.

Sine mutato aquam, concreto fluunt libere, faciens facilius ad opus cum (id augendae workability).

Per usura unum tonne de Lignosulfonate superplasticifer pulveris pro caemento, vos ut salvum 30-40 tones de caemento cum servata idem concreto Suspendisse, intensionem, et reference.

In statu status, concretum mixto cum hoc agente ut moraretur apicem calor hydratationis plus quam quinque horas, in finalem occasum tempus concretum plus quam tres horas et occasum concretum plus quam tres horas ad reference tempus concretis plus quam tres horas ad reference simul. Hoc est utile aestate constructione, commoditas concretum onerariam et massa concretum.

Lignosulfonate superplasticifer cum micro-entaraining potest augendae concretum scriptor perficientur in terms of Frigidus-CALEFACTO impermeability.