混凝土自干燥收缩与其内部相对湿度的下降密切相关。
The self-desiccation shrinkage of concrete is closely related to the drop of its internal relative humidity.
内部和外部的干燥收缩和热膨胀，是从根本上关系到内部相对湿度。
Internal and external drying shrinkage and thermal dilation are fundamentally related to the internal relative humidity.
本发明粉煤灰掺加量高、抗压强度高、干燥收缩值低、耐久性较好。
The method of the invention has advantages of high content fly ash and compressive strength, low drying shrinkage value and good durability.
膨胀剂和减缩剂双掺使用是减少膨胀混凝土干燥收缩落差的有效措施。
The double mix of expansion agent and shrinkage-reducing agent is an effective way to reduce the drying shrinkage fall of expansive concrete.
是的，我们可以生产尺寸为您，我们通常给分。5毫米干燥收缩，但它给你。
Yes we can produce on sizes for you, normally we give min. 5mm for drying shrinkage, but it is up to you.
本文采用物理图解和数学推导，形象地描述了混凝土干燥收缩的物理力学机制。
Physical graphics and mathematical deduction are displayed, to visually describe the mechanism of dry shrinkage of concrete.
复合硅酸盐保温材料可塑性强、导热系数低、耐高温、浆料干燥收缩率小等特点。
Composite silicate insulation material plasticity, low thermal conductivity, high temperature resistant, low pulp drying shrinkage rate, etc.
混凝土中掺加适量高钙灰，对于混凝土的干燥收缩有补偿作用，可降低其开裂风险。
When taken in concrete with proper quantity, HCFA can compensate the drying shrinkage of concrete, and accordingly reduce the cracking risk of concrete.
结果表明：掺入硅灰会略微增加混凝土早期自生收缩，而对早期干燥收缩影响不大；
Results shown that the addition of silica fume could increase the autogenous shrinkage a little and almost had no effect on the drying shrinkage.
道路基层贫混凝土水泥用量较大而且是暴露面积较大的工程，容易发生较大的干燥收缩。
The lean concrete road base is easy to bring dry contraction due to its much amount of cement and large exposed area.
延长混凝土的早期水养时间，并不会减少混凝土的干燥收缩值，反而会使干缩速率加快；
The early water curing of concrete is longer and then the rate of late drying shrinkage of concrete is faster.
通过钢渣粉的膨胀性来辅助分析半刚性基层材料中掺入钢渣粉后干燥收缩有所减缓的原因。
By means of the expansibility of the steel slag, the paper analyzed the reason that the dry shrinkage of the semi-rigidity base material had been weakened after steel slag powder joined.
通过试验研究了几种类型的高效减水剂在同样水灰比和砂灰比的情况下对砂浆干燥收缩性能的影响。
The influence of different superplasticizers on drying shrinkage of mortar with the same water cement ratio and same sand cement ratio was investigated in this article.
结果表明，搅拌对上述性质的影响非常显著，并且进一步影响硬硅钙石制品的干燥收缩率及体积密度。
The results indicate that stirring evidently affects the formation and morphology of xonotlite secondary particles, and further affects the dry shrinkage and bulk density of xonotlite products.
主要研究了不同弹性模量的钢纤维、聚丙烯纤维和聚丙烯腈纤维混杂对水泥混凝土的干燥收缩性能的影响。
In this paper, the effects of the steel fibers of different elastic modules, polypropylene fibers and polyacrylonitrile fibers on the dry shrinkage of concrete are studied.
研究了矿渣的粉磨细度、激发剂的掺量、改性剂的种类与掺量对矿渣胶凝材料的干燥收缩性能及强度的影响。
The slag grinding fineness, additives of exciting agent, modifier kind and quantity, which influence the dry contractibility and strength of slag cementing material, have been studied.
进入20世纪，尝试依旧继续。挪威科学家采用明胶为主的粘合剂，想在轴卷干燥收缩的过程中一层层剥落。
Attempts continued into the 20th century, when Norwegian scientists tried applying a gelatine-based adhesive that shrank when it dried, peeling the scrolls' layers apart in the process.
将引起混凝土裂缝的类型归纳为塑性收缩开裂 ，干燥收缩开裂 ，水化热开裂三种 ，并对其表象及成因进行了阐述。
The types of those cracks are summarized as three kinds: plastic shrinkage cracking, dry shrinkage cracking and hydration heat cracking.
成型坯体的干燥收缩率小于0.3%，密度分布的标准偏差为0.32%，反应烧结过程中，坯体的收缩率小于0.2%。
Theshrinkage of green body was 0.3% and the density deviation was 0.32%. After infiltrated with molten silicon, the shrinkage of sintering body had another 0.2%.
试验结果表明，加入纤维能使镁质中间包涂料的体积密度大幅度地降低，有机发泡剂的加入能够进一步降低涂料的体积密度及干燥收缩；
The result shows that adding fiber can greatly reduce the bulk density of coating. The organic expanding agent can also lower bulk density of coating and linear change in drying process.
混凝土的早期开裂主要是由于混凝土失水所产生的干燥收缩、水泥水化所产生的混凝土自收缩以及水泥水化热所产生的温度应变所引起。
The early cracking of concrete is usually caused by dry shrinkage, autogenous shrinkage of cement hydration and thermal-strain by hydration heat of cement.
结果表明：墙体砖中高炉渣掺量可达70%以上，其外观质量、强度性能、体积密度、吸水率和干燥收缩性能等指标均达到或超过砌墙砖的基本要求。
The main properties of the wall brick such as exterior quality, strength character, volume density, the water absorption and dry contractibility satisfied the basic requirements for wall brick.
在分析气凝胶干燥开裂的原因后，以三甲基氯硅烷（ TMCS）为表面修饰剂， 正己烷为干燥介质的表面改性工艺，一定程度控制了气凝胶的干燥收缩和开裂。
Silica aerogel crazing was analyzed and some improvements were made using TMCS surface modification technique together with the drying media of normal-hexane to control the crazing.
其次，木材的处理方式采用自然烘干和干燥炉烘干法，除去木头间的空隙并将纹路间的空隙适度收缩以避免卷曲变形。
Secondly, the treatment of wood with natural drying and drying furnace drying, remove the gap between wood and veins shrink the gap between moderate to avoid crimping deformation.
木材干燥时会收缩。
通过测量不同品种和掺量的碱对水泥基材料的水分损失量和自由收缩率，研究了在干燥条件下不同的碱对水泥基材料收缩性能的影响规律。
This paper showed the results of experimental study on the effects of different types and adding amount of alkali on the loss rate of water and the drying shrinkage of cement paste.
结果表明，直接空气干燥方法使得玉米根的表皮和皮层细胞显著收缩。
It has been shown that epidermis and cortex of maize root were apparently shriveled with air drying method.
采用非结晶聚酯切片制备高收缩涤纶短纤维，对切片干燥、纺丝、拉伸、定型等工艺进行了研究。
High shrinkage polyester staple was prepared by using amorphous polyester chip. The technology of drying, spinning, drawing and non-setting was studied.
进行了不同水灰比对混凝土早期自收缩及干燥条件下总收缩影响的试验研究。
The influence of different water-cement ratio on early-age autogenous shrinkage and total shrinkage of concrete under dry condition is experimented in this paper.
进行了不同水灰比对混凝土早期自收缩及干燥条件下总收缩影响的试验研究。
The influence of different water-cement ratio on early-age autogenous shrinkage and total shrinkage of concrete under dry condition is experimented in this paper.
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