在物理力学性质指标中成熟材的基本密度、气干密度、顺纹抗压强度、抗弯强度、抗弯弹性模量及冲击韧性高于幼龄材;
In physical and mechanical indexes, the basic density, air-dried density, compression strength parallel to grain, MOR, MOE and toughness of mature wood are higher than that of juvenile wood.
研究了膨胀土加入石灰改性后,其无荷膨胀率、膨胀力、无侧限抗压强度等指标的变化规律。
Studing on the changing rule of lime modification expansive soil, such as free swelling ratio, swelling strength, non-side limitation compressive strength.
杨氏弹性模量是反映树干或板材抗弯、抗压强度的重要指标,是开展林木材质育种研究的重要内容。
MOE reflects log or lumber material anti-bend, important index of the anti-press strength, which is the important contents for developing forest wood breeding.
分别从胶砂强度值、胶砂抗压强度比和比强度指标三方面分析磨细锶渣作为水泥掺合料的活性效应。
Effects of the activity of ground-strontium slag as cement admixture were analyzed from three aspects: mortar strength value, compressive strength ratio of mortar and specific strength indicators.
无侧限抗压强度与压实度是检验堤防道路工程质量的重要指标,试验精度高,计算方法复杂。
Unconfined compression strength and compactness are important indexes that examines the engineering Quantity of dike road. The experimental precision is high, the computing technology is complicated.
抗压强度是金属两片罐的一个重要性能指标,而罐底结构影响其抗压强度。
Compressive strength is one important mechanics factors of metal two-piece can and the bottom configuration affects its compressive strength.
提出了点荷载指标与抗压强度及抗拉强度间的相关系数。
The interrelation coefficients of point load test index to its compressive and tensile strength are finally recommended.
分别以砂浆抗压强度、粉煤灰单位强度因子为指标研究了砂浆体系中粉煤灰的最佳掺量范围。
The concept of fly ash-saturation was put forward based on the index of maximum compressive strength and optimal unit strength factor of fly ash in cementing materials, respectively.
对轻骨料高强度钢纤维混凝土的抗压强度、初裂强度、弯曲强度、弹性模量和弯曲韧性指数等主要力学指标进行了试验研究。
The flexural strength, first crack strength, modulus of elasticity and flexural toughness of high-strength lightweight fiber-reinforced concrete were investigated.
试验结果表明,混凝土抗压强度不仅与水灰比密切相关,而且与骨料压碎指标有关。
Experimental results show that the compressive strength of concrete is closely related not only to the water-to-cement ratio, but also to the crushing value of aggregate.
而且,实验结果也表明,抗压强度的各向异性程度比其他各种物性指标的各向异性程度都要大。
In addition, the degree of anisotropy of tensile strength is largest compared with that of other physical properties.
制得的粘结剂有强的粘结性,与煤粉混合经辊压制成的型煤耐水性好,跌落强度和抗压强度均达到国家工业型煤攻关指标。
The briquette made by rolling coal powder mixed with the cohesive agent has good resistance to water and, its resistances to pressure and falling can meet national stander...
获得数据指标的试验方法是根据GB8076- 1997规定试验方法,包括:泌水率、坍落度、凝结时间差、抗压强度比、收缩率等。
The testing method of acquiring the data guide lines is based on provision of GB8076-1997 including bleeding rate, slump, concreting time. ratio of compressive strength. shrinkage rate and so on.
得出了各种强度指标、变形模量及峰值应变与混凝土抗压强度的回归关系式 ,加深了对超高强混凝土的力学性能的认识。
The thesis presents several regression equatons that of others strengths, modulus of deformation and peak strain with compressive strength. It offers some importaint data for utilization of…
得出了各种强度指标、变形模量及峰值应变与混凝土抗压强度的回归关系式 ,加深了对超高强混凝土的力学性能的认识。
The thesis presents several regression equatons that of others strengths, modulus of deformation and peak strain with compressive strength. It offers some importaint data for utilization of…
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