水下凝灰巖 的英文怎麼說
中文拼音 [shuǐxiànínghuīyán]
水下凝灰巖
英文
aquagene tuff- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 下 : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
- 凝 : 動詞1. (凝結) congeal; curdle; coagulate 2. (注意力集中) fix
- 灰 : Ⅰ名詞1 (物質燃燒后剩下的粉末狀的東西) ash 2 (塵土; 某些粉末狀的東西) dust 3 (特指石灰) lime...
- 巖 : 名詞1. (巖石) rock 2. (巖峰) cliff; crag
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The concept holds that uranium is leached by groundwater from tuffeceous rocks.
該理論認為,來自凝灰巖的地下水淋蝕鈾。This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too
本文採用高強頁巖陶粒,摻加高效減水劑配製大流動性結構輕集料混凝土,討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響;系統研究了高強陶粒在常壓和壓力下的吸水規律;研究了影響大流動性結構輕集料混凝土勻質性的因素,提出了解決大流動性結構輕集料混凝土分層離析的具體措施。In light of great harm from alkali - aggregate to concrete, the alkali activation of the limestone to be used as the aggregate for the concrete in the construction of zhangfeng reservoir is fully tested with petrographic method, accelerated mortar bar method and autoclave expansion test etc., so as to ensure the durability of the anti - abrasion concrete therein
摘要堿骨料對混凝土的危害很大,為保證抗沖磨混凝土的耐久性採用巖相法、砂漿棒快速法、壓蒸法等4種方法對陽城下川灰巖進行檢驗,以充分揭示張峰水庫混凝土粗骨料是否存在堿活性。
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