1) water-reducing rate
减水率
1.
Influence of different cement usage to the water-reducing rate in concrete water-reducing admixture;
不同水泥用量对减水剂在混凝土中减水率的影响
2.
The product has good performance,such as low dosage,high water-reducing rate,low slump-loss,and its preparation is simple.
该减水剂与目前市售萘系减水剂相比,具有掺量低、减水率大及混凝土坍落度损失小、抗压强度高等优良性能,且制备工艺简单。
2) water reducing ratio
减水率
1.
And water reducing ratio of concrete is 25%,slump lose a little.
结果表明,X-Z系列减水剂具有缓凝特性,能够显著延缓水泥水化的放热;可使水泥气孔细化且分布更加合理,水泥石的后期水化更充分,水化产物结构更紧密更有力量;减水率达25%,坍落度损失低,各龄期混凝土抗压强度都有较大提高。
2.
By this type of superplasticizer,the water reducing ratio can come up to around 28% and the 28 d strength of the concrete can be increased by 53%.
这类高效减水剂的减水率可达到28%左右,混凝土28 d强度增加53%。
3.
By this type of compounded superplasticizer,the naphthaline dosage can be reduced,higher water reducing ratio(24%~28%) and better slump constant can be achieved for the synergistic effects,and the strength of the concrete can be notably increased by 40%~50%.
复合型高效减水剂降低了萘系减水剂用量,并且产生超叠加效应使复合减水剂具有较高的减水率(24%～28%)和良好的坍落度保持性,可显著提高混凝土的强度40%～50%。
3) water reducing rate
减水率
1.
The sort and application field of water reducing agents are summarized,and water reducing rate,dosage,strength performance of superplasticizer are compared.
综述了减水剂的种类、适用范围,并对常用高效减水剂在减水率、掺量、抗压强度等方面的性能作了比较,指出减水剂研究中所存在的问题,展望了今后的发展趋势,为工程中减水剂的应用起到指导作用。
2.
It has high water reducing rate (over30%),high ability of controlling slump loss(basically no slump los s for2hours)an.
其减水率高(大于30%),保坍性能好(2h坍落度基本无损失),环保性能优良(释放氨的量仅为0。
4) water reduction
减水率
1.
The water reduction and the performance of concrete with the aliphatic superplasticizer modified by sulfanilc acid have extensively enhanced.
在脂肪族类高效减水剂的基础上,添加了对氨基苯磺酸钠,对其进行改性,改性后的减水剂的减水率和混凝土的性能均得到了大幅度提高。
2.
Compared with common melamines superplasticizer, the modified melamine superplasticizer has much higher water reduction and even better strengthening performance.
与亚硫酸氢钠做磺化剂所得减水剂比较,改性后减水剂的减水率及混凝土强度有明显提高。
3.
Tests were carried out on cement paste fluidity, slump loss of products and water reduction of concrete.
根据分子设计的原则,通过改变原料单体摩尔比、酸碱度、反应温度和时间等工艺参数,进行了氨基磺酸系高效减水剂的试验室合成试验,并对产物进行了水泥净浆流动度与其经时变化及混凝土减水率的试验。
5) high water reducing rate
高减水率
1.
A new type of high-effective retarder and water-reducer with low air entraining content and high water reducing rate for preparing high-strength concretefilled steel pipe is developed by using of polycarboxylate water-reducer and sodium gluconate as well as zinc sulphate.
将聚羧酸减水剂、葡萄糖酸钠、硫酸锌等按一定比例复合,研制出一种高减水率、低引气量的钢管混凝土专用缓凝保塑高效减水剂WUT-G(Ⅰ):配制C 50钢管混凝土时,其最佳掺量为0。
6) water reducing ratio of cement mortar
砂浆减水率
补充资料：气温直减率
气温直减率
temperature lapse rate
q iwen zhiiianl百气温直减率(temperature lapse rate)表征气温垂直变化程度的物理量，是气温垂直递减率的简称，数值上等于气温随高度增加而降低的速率。 对流层气温直减率大气直接吸收太阳辐射较少，大气热量主要依靠地面辐射及湍流热交换输入，气温随离地面高度的增加而降低。就全年论，整个对流层气温直减率平均为6.5℃/千米。一般上层(6公里以上)平均为6.5一7.5℃/千米;中层(2一6公里)为5一6℃/千米，下层(2公里以下)受地面影响很大，其气温直减率随测点位置、季节、昼夜、天气条件都有较大变化。 山区气温直减率山区气温是在山的不同部位，在离地表面1.5一2.0米高度上测得的，它受山体本身及周围地形的影响很大，其气温直减率要比自由大气中复杂，但总趋势仍是气温随高度增加而下降，平均递减率约5一6℃/千米，如图。山区气温直减率与测点纬度、海拔高度、地形条件、盛行风向、水体影响程度等一系列因素有关，尤以地形条件和盛行风的影响最明显。一般在迎风坡直减率小，在背风坡直减率大。山区气温直减率还存在年变化，中国大多数山区以夏季的直减率最大，这与季风气候特征密切相关(见表)。在山区坡地经常可观测到气温随测点海拔高度增加而递增的逆温现象，大多由冬季冷空气沉积已0.8恻0 .6{姐.井冈山沐九疑山。一节一不了一言一拓一几7一18，” 温度/℃ 山区年平均气温随高度变化 中国各山地气温直减率(℃/km)┌────┬───┬──┬───┬───┐│山地 │1月 │4月 │’7月 │l()月 │├────┼───┼──┼───┼───┤│天山北坡│一4.()│5 .0│了·4 │4.() │├────┼───┼──┼───┼───┤│秦岭北坡│3 .2 │4 .3│5 .0 │4 .1 │├────┼───┼──┼───┼───┤│黄山 │4 .1 │50 │6 .0 │5 .2 │├────┼───┼──┼───┼───┤│峨嵋山 │5.! │5 .7│5 .5 │5 .3 │├────┼───┼──┼───┼───┤│云南山地│7] │8l │59 │7O │└────┴───┴──┴───┴───┘或夜间局地冷空气沿坡地下沉所造成。山坡上的逆温带常常是喜温作物越冬的最有利地段。可根据某些山区的实测气温直减率，来推估无资料山区的温度，为合理开发、利用山区农业气候资源服务。(翁笃鸣)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条