Mixed efficient jianshuiji USES steam curing of concrete, concrete should have the necessary structure strength to warming, steaming raise system should be determined by test.
掺高效减水剂的混凝土采用蒸汽养护时,混凝土应具有必要的结构强度才能升温,蒸养制度应通过试验确定。
By test analysis compared with strength degree 32.5 of cement, strength of steel slag concrete is slightly decreased, but its fluidity is improved.
实验对比表明:与强度等级为32 . 5的纯水泥钢渣混凝土对比,掺入钢渣粉的砼强度略有降低,但能改善混凝土的和易性。
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。
The test results indicated that the strength of concrete could be estimated by supersonic velocity values.
结果表明由超声波测试得到的声速值可以方便地估算出混凝土的强度。
Based on the ultimate tensile strength test and extension test under confining pressure, the characteristics of flexible concrete are studied.
通过极限抗拉强度试验和围压作用下的拉伸试验,研究了柔性混凝土的抗拉破坏特性。
Tension eccentricity of the specimen section is the main problem in concrete homogenous tensile strength test.
试件截面受拉偏心是混凝土均匀受拉强度试验中存在的主要问题。
Test and study on compression strength and shear strength of the brickwork for a new concrete small hollow block with connector have been carried out.
对一种带联接件的新型混凝土小型空心砌块砌体的抗压强度和抗剪强度进行了试验研究。
This article discusses the influences of fine slag powder to workability, compressive strength and durability of concrete in the test.
通过试验讨论了矿渣微粉对混凝土工作性能、抗压强度及耐久性的影响。
Test results indicate that smaller hoop spacing provides higher column capacity and greater strength enhancement in a confined concrete core of columns.
试验结果表明,箍筋间距越小,则柱承载能力越高,混凝土核心约束强度提高幅度越大。
Abrasion and mechanical properties test of concrete have shown that the degree of abrasion dependent on initial abrasion ratio, flexural strength and limit strain.
从混凝土磨蚀和力学性能试验得知,水工混凝土的磨蚀程度依赖于混凝土的初始磨损率,抗拉强度和极限拉伸变形值。
The strength of negative temperature concrete is tested with supersonic-rebounding method. The results state that the method is suitable to test the strength of negative temperature concrete.
本文将超声回弹综合法用于负温混凝土强度检测。结果表明,超声回弹综合法可以用于检测和评定负温混凝土的强度。
The influence of cement soundness on concrete strength and the method of simple test for soundness of cement in concrete have been discussed.
讨论了水泥安定性对混凝土强度的影响以及混凝土中水泥安定性的简易检验。
In the test, the strength grade of concrete is C20 and C60, and the cementitious system contains 10%, 20%, 30% and 40% of fly ash in accord with weight.
实验中应用的混凝土的强度等级分别为C20和C60,其中粉煤灰的掺量(胶凝材料的质量分数)分别为未掺、10%、20%、30%、40%。
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。
The Inspection of concrete strength of cast in situ piles by Ultrasonic is to identify concrete strength at the same time to test uniformity and integrality of pile body.
超声检测灌注桩混凝土强度是指在超声检测桩身混凝土匀质性、完整性的同时确定桩身混凝土的强度。
Through laboratory test, the fatigue property of different high bending strength pavement concrete is studied, which is contrasted with different concrete under the same stress level and load.
通过室内试验研究了不同种类高抗折强度路面混凝土的疲劳性能,并在相同应力水平以及相同荷载作用下与不同类型混凝土的疲劳性能进行了对比分析。
Based on the Gray System theory and the test data, a strength forecast model of concrete in seawater is established.
根据灰色系统理论,依据试验数据建立了海水作用下混凝土的强度预测模型。
The cube cleavage test is an indirect method to determine the tensile strength of concrete.
立方体劈裂试验是测定砼抗拉强度的间接方法。
This method is used to test concrete strength of building structure, so the question of building in-site strength curve is resolved effectively.
将文中方法运用于回弹法检测混凝土强度中,有效解决了现场测强曲线建立问题。
The indoor lab test results showed that mineral admixture brucite fiber reinforced concrete can improve the flexural tensile strength of concrete.
室内试验研究结果表明掺矿粉水镁石纤维混凝土可提高混凝土的抗弯拉强度。
Wall thickness of steel tube, concrete strength, shear-span ratio and axial force ratio were considered as test parameters.
试件参数包括钢管壁厚、混凝土强度、剪跨比和轴压比。
A constructive formula of ultrasonic-rebound method to test concrete strength is presented.
一种超声回弹综合法检测混凝土强度的推定公式被提出。
The analysis of the test results show that the masonry wall filled with foaming concrete can increase cracking-resistance, and load-bearing capacity, and improve strength of walls'.
试验结果分析表明,内注泡沫混凝土的空心砌块,能提高墙体的开裂荷载和极限荷载,改善了混凝土空心砌块砌体的抗剪承载力。
The sulphuric acid erosion resistance of super-early and super-high strength concrete containing limestone powder and lithium slag was studied by means of accelerating cycle soak test.
采用周期浸泡加速试验方法,研究了石粉锂渣超早强超高强混凝土的耐硫酸腐蚀性。
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。
The activity test indicates that the pozzolanic activity of L-RHA surpasses that of palletized silica fume, and L-RHA has strong strength effect on ordinary concrete and high strength concrete.
活性试验显示,低温稻壳灰火山灰活性超过造粒硅灰,对普通混凝土和高强混凝土都具有强烈的增强作用。
The bonding strength calculating formulas are presented. Which were referred to the tensile characteristic of concrete, and shows good agreement with the test results.
给出了与混凝土本身抗拉性能相关的、与试验结果符合良好的粘结强度计算公式。
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。
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。
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