The soft base strengthened by low strength of concrete piles can make the soil dense, raise the stiffness and decrease the deformation.
用低标号混凝土桩加固软弱地基，可以密实土质，提高刚度，减小变形。
This paper introduces the test results and calculative method by using the composite foundation of sand-stone pile and concrete pile with low strength.
本文通过试验与工程实践，介绍采用碎（砂）石桩及低强度混凝土桩组合构成复合地基的试验成果、计算方法及应用检测成果。
It should be considered in examining the concrete of low strength grades.
在检测的混凝土强度等级较低时，应考虑到这种差异。
The effect of revibration for low fluidity concrete is not well, which reduces strength of concrete.
低塑性混凝土的二次振动效果不是很好，降低了混凝土的强度；
Such as sand not clean (mud high content), sand the fineness modulus too high or too low, also can make the strength of concrete is reduced, and the water increased.
如砂石不干净(泥含量较大)、砂的细度模数过高或过低等，也会使混凝土强度降低、泌水性增加。
The pile of low strength concrete (LC pile) has very extensive applied foreground because of its working principle AD economic factor.
低强度等级混凝土桩(LC桩)由于其工作原理及经济等因素，应用前景十分广泛。
This paper studies the reasons for low strength of post- placed aggregate concrete, and points oat that great bleeding is the main reason for low strength of the concrete.
对压浆混凝土存在的强度偏低现象进行了研究，指出了泌水量大是压浆混凝土强度较低的主要原因。
As we all know, the use of phosphorous slag powder(PSP)as admixture can lead to some adverse effects in concrete performance, such as low early strength and prolonged setting times.
磷渣粉作为掺合料对混凝土性能产生一些不利的影响，一是早期强度低，二是凝结时间长。
Permeability test of concrete which surface is treated by reinforcing agent prove that it can improve durability of low strength concrete effectively.
因此，混凝土表面的涂刷渗透试验证明表面增强剂可以有效提高低强混凝土的耐久性。
With low penetration, the spalling of high strength concrete (HSC) at elevated temperatures which seriously affect the performance of reinforce concrete structure might occur.
高强混凝土的渗透性很低，高温下可能出现爆裂破坏现象，严重影响混凝土及其内部钢筋的结构使用性能。
Suitable for winter construction of construction engineering and normal temperature and low temperature condition construction has the early strength of concrete engineering requirements.
适用于冬季施工的建筑工程及常温和低温条件下施工有早强要求的混凝土工程。
The pile of low strength concrete(LC pile) has very extensive applied foreground because of its working principle and economic factor.
低标号混凝土桩（LC桩）由于其工作原理及经济等因素，应用前景十分广泛。
The shear behaviors of the low strength brick masonry wall strengthened with the self-compacting reinforce concrete wall have been discussed by 6 experimental models.
为研究自密实混凝土板墙加固低强度砂浆砖砌体的抗剪性能，共做了6个墙体加固试件。
The high performance concrete for core wall of earth dam must be good workability, low early strength, high final strength, high seepage resistance, low elasticity modulus and high tensile strength.
黄壁庄水库副坝防渗心墙加固工程所需高性能混凝土，要求和易性好、早期强度低、后期强度高、抗渗性能好、低弹模和高抗拉强度。
Aiming at these defects, a kind of special mortar for plastering aerated concrete with good workability, good water retention, high bonding strength and low shrinkage ratio has been prepared.
针对这些缺陷，研制了一种和易性好、保水性好、粘结强度高、收缩率低，适合加气混凝土抹灰用的砂浆。
As a new type of filling materials, the aerated concrete has the features of low density, low strength, good absorption of water and great contraction.
加气混凝土作为一种新型的墙体填充材料，具有容重小、强度低、吸水率高，收缩性大等特性。
With test results of five specimens of exterior joints of rein- forced concrete frames subjected to low cyclic loading, the shear strength of these joints is discussed.
本文介绍五个钢筋混凝土框架过节点试件在低周反复荷载下的试验结果。
The result of the research indicates that the high performance concrete produced with this type of cement is of higher early and post strength and the electric flux of the concrete is low.
研究结果表明，应用该水泥配制的高性能混凝土均具有较高的早期强度和后期强度，混凝土的电通量较低。
On the basis of experiment research, the internal force of high strength bolt joint area of steel beams and concrete walls within steel profiled bar was analyzed under the low period cyclic load.
在试验研究的基础上，对钢梁与钢骨混凝土墙高强螺栓连接节点在低周反复荷载作用下节点域的内力进行分析。
High Performance cementitious material is specially used for high Performance concrete. Propetties of that are high strength, low water demand, low hydration heat and low shrinkage.
高性能胶凝材料主要用于高性能混凝土，具有强度高、需水量小、水化垫低和收缩小等特点。
A formula is provided to calculate the compressive capacity of concrete block masonry when the mortar strength is very low.
提出了适用于砂浆强度很低的灌孔砌块砌体的抗压强度计算公式。
First, the steel fiber reinforced concrete and the lightweight aggregate concrete can make up the deficiencies of common concrete such as low tensile strength and large dead weight.
首先，钢纤维和轻骨料能弥补普通混凝土存在的抗拉强度低和自重大等方面的不足。
The deterioration is accelerated because the strength grade of concrete is too low, depth of cover too thin, and drain off water unsuitable.
调查表明，原设计混凝土标号过低，保护层过薄，桥面排水不当，加速了劣化过程。
The concrete has the characteristics of large fluidity, low slump loss, and high early strength, and it is suitable for the highrise and long-span building structure.
该混凝土具有流动性大，坍落度损失小，早期强度高的特点，适合于高层、大跨度的现代建筑结构。
Concrete is one of the brittle materials, which has low tensile strength, poor toughness and poor impact resistance.
混凝土是一种脆性材料，具有较低的抗拉强度、韧性和抗冲击能力。
The static load test in-situ and low-strain detection show that the bearing capacity of single pile meets design demand; pile integrity is good; concrete strength of pile reaches design value.
现场静载试验检测和低应变检测结果表明，单桩承载力满足设计要求，桩身完整，其混凝土强度达到了设计值，可满足工程需要。
Sufficient compression strength and cold insulation coefficient must be reached for the cold insulation concrete foundation of a low temperature storage tank.
低温储罐保冷混凝土基础，不但要有一定的抗压强度，还要达到一定的保冷系数，其施工难度相对较大。
Defects of bad water retention, low bonding strength, easy cracking and bulging seriously impede extensive application of aerated concrete when common mortar is used for plastering aerated concrete.
由于传统砂浆用于加气混凝土抹灰时，存在保水性差、粘结强度低、易开裂空鼓等缺陷，这严重阻碍了加气混凝土的广泛应用。
The result shows that normal concrete with low strength after been high-performed is of good high performance.
结果表明，掺粉煤灰的高性能混凝土物理力学性能优异；
The result shows that normal concrete with low strength after been high-performed is of good high performance.
结果表明，掺粉煤灰的高性能混凝土物理力学性能优异；
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