Dyma'r mathau o admixtures ar gyfer concrit yn unol â IS 9103 (1999):
Cyflymu Cymysgeddau
Mae'r math hwn o gymysgedd yn hwyluso amser gosod concrit ar gyfer datblygu cryfder yn gyflymach. Maent yn cynyddu cyfradd hydradu sment hydrolig pan gânt eu hychwanegu at forter neu growt. Maent yn cynnwys cyfansoddion fel calsiwm clorid, calsiwm nitrad, neu triethanolamine. Fe'u defnyddir mewn sefyllfaoedd lle mae angen amseroedd gosod cyflymach, megis mewn tywydd oer neu ar gyfer amserlenni adeiladu cyflym.
Retarding Admixtures
Retarders work oppositely to accelerators. They slow down the setting time of concrete. These are helpful when the concrete needs to travel long distances in special mixers or when it is hot outside. Retarding admixtures are especially handy as a grouting mix and work to reduce the water used. The hydroxyl carboxylic acid is a type of admixture that makes concrete with a bit less water than the quantity of water used in a regular mix. Using these admixtures can make the concrete last longer and be sturdier.
Water-reducing admixtures
These are the types of admixtures that enable the reduction of water content in the concrete mix without compromising its workability. They enhance the flowability of concrete, allowing for easier placement and better compaction. Using this admixture comes in handy in various scenarios. Pouring concrete is tricky because there are lots of bars or other elements in the way. Also, when the mix of concrete is tough, like when crushed rocks are used, this admixture can make the concrete more workable. Additionally, by adding this admixture, the cost of cement used in making concrete can be reduced by a notable amount. Common water-reducers include polycarboxylate ethers a lignosulfonates.
Air-entraining admixtures
Mae'r cymysgeddau hyn yn cyflwyno swigod aer microsgopig i'r cymysgedd concrit wrth gymysgu. Trwy newid tensiwn wyneb y dŵr cymysgu, maent yn caniatáu i swigod aer ffurfio a gwasgaru'n unffurf trwy'r concrit. Mae'r swigod hyn yn gwella gwydnwch y concrit trwy wella ei wrthwynebiad i gylchoedd rhewi-dadmer, lleihau gwaedu, a gwella ymarferoldeb. Mae'r rhain yn cynnwys asiantau fel resin vinsol neu halwynau asidau petrolewm.
Admixtures plastigeiddio gwych
Superplasticisers are advanced water-reducing agents that greatly enhance the workability of concrete without increasing water content. They significantly improve the flow characteristics of concrete, allowing for easier placement in congested reinforcement areas. Compounds such as sulfonated naphthalene formaldehyde condensate (SNF), polycarboxylate ethers (PCE), and melamine-based superplasticisers fall into this category.
Deunyddiau adeiladu Binzhou Chengli Co., Ltd. Is Located In The Beautiful Scenery Of The Yellow River Delta Center City-Binzhou, North Of China. Our Company Is Professionally Specialized In The Process Of Production,Research,Development, And Selling Of Concrete Admixtures.
