爱的色放在线观看,国产精品美女一区二区三区,欧美性生交XXXXX久久久,天天做天天爱夜夜爽


免費注冊快速求購


分享
舉報 評價

混凝土反應性能評估儀MicroBAR Test

參考價面議
具體成交價以合同協議為準

該廠商其他產品

我也要出現在這里

混凝土反應性能評估儀MicroBARTestisanormalizedtestaccordingtonormAFNORP18-588whichevaluatesthereactivityofconcreteinfrontofalkali-aggregatereactions

詳細信息 在線詢價

混凝土反應性能評估儀MicroBAR Test is a normalized test according to norm AFNOR P 18-588 which evaluates the reactivity of concrete in front of alkali-aggregate reactions. Alkali-aggregate reaction (AAR) or more common Alkali-Silica reaction (ASR) covers the determination of the susceptibility of aggregate containing silica, in combination with cement, to expansive reactions involving the alkali compounds (Sodium and Potassium) by measuring the variation in length of microbar (1 x 1 x 4 cm) prisms. Reliable and relevant information relative to this reactivity can be pointed out from the length variation of mortar or concrete microbars. 混凝土反應性能評估儀MicroBAR Test has done its proof: easy and clear classification of sand and aggregates after 5 days test.


混凝土反應性能評估儀Description - Kit Composition

The test uses micro-bar 1 x 1 x 4 cm which are successively submitted to a humid cure with a stream bath, then an alkali cure in KOH 10% and 150°C. Dimensional variations of microbars are followed for 3 different A/C (aggregates to cement) ratio. Kit 混凝土反應性能評估儀MicroBAR includes the essential elements (glassware excluded) to perform the test, i.e.:

  • 1 digital retractometer

  • 3 PTFE baskets for humid cure

  • 3 molds for microbars 1 x 1 x 4 cm

  • 1 basket holder for 4 L round-bottom flask

  • 1 top cover 1 set of 1 000 studs

  • 3 stainless steel mini-reactors

混凝土反應性能評估儀Example

An example of the evolution of the length variation of microbars along the time is given below (from Swani R.N., 1992).




同類產品推薦


提示

×

*您想獲取產品的資料:

以上可多選,勾選其他,可自行輸入要求

個人信息: