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Composite admixture machine-made sand concrete, preparation method and system
The invention belongs to the technical field of machine-made sand concrete, and discloses composite admixture machine-made sand concrete, a preparation method and a system, the composite admixture machine-made sand concrete has the machine-made sand replacement rate of 75%, the stone powder content of 9%, the steel slag doping amount of 20% and the silica fume doping amount of 5%; the anti-freezing performance test method comprises the following steps: determining an optimal performance mix proportion scheme by using an orthogonal test method and taking relative dynamic elastic modulus and mass loss rate as evaluation indexes under different admixture indexes, machine-made sandstone powder content and machine-made sand substitution rate; a range analysis method and a variance analysis method are used for analyzing the significance of the influence of each factor on the anti-freezing performance of the composite admixture machine-made sand concrete, the significance degree of each factor is compared, and the optimal mixing amount is analyzed. Under the action of freezing and thawing cycles, along with the increase of freezing and thawing times, the relative dynamic elastic modulus reduction rate of the composite admixture steel slag-silica fume machine-made sand concrete is increased, and the mass loss rate reduction rate is also increased.
本发明属于机制砂混凝土技术领域，公开了一种复合掺合料机制砂混凝土、制备方法及系统，复合掺合料机制砂混凝土，机制砂取代率75％、石粉含量9％、钢渣掺量20％和硅灰掺量5％；抗冻性能测试方法，包括以下步骤：运用正交试验方法，在不同掺合料指标、机制砂石粉含量以及机制砂取代率下，以相对动弹性模量和质量损失率作为评判指标，以确定最佳性能配合比方案；运用极差分析法和方差分析法分析了各因素对复合掺合料机制砂混凝土抗冻性能影响的显著性，比较出各因素的显著程度，分析最佳掺量。复合掺合料钢渣‑硅灰机制砂混凝土在冻融循环作用下，随着冻融次数的增加，相对动弹性模量降低速率加快，质量损失率下降速度也加快。
Composite admixture machine-made sand concrete, preparation method and system
The invention belongs to the technical field of machine-made sand concrete, and discloses composite admixture machine-made sand concrete, a preparation method and a system, the composite admixture machine-made sand concrete has the machine-made sand replacement rate of 75%, the stone powder content of 9%, the steel slag doping amount of 20% and the silica fume doping amount of 5%; the anti-freezing performance test method comprises the following steps: determining an optimal performance mix proportion scheme by using an orthogonal test method and taking relative dynamic elastic modulus and mass loss rate as evaluation indexes under different admixture indexes, machine-made sandstone powder content and machine-made sand substitution rate; a range analysis method and a variance analysis method are used for analyzing the significance of the influence of each factor on the anti-freezing performance of the composite admixture machine-made sand concrete, the significance degree of each factor is compared, and the optimal mixing amount is analyzed. Under the action of freezing and thawing cycles, along with the increase of freezing and thawing times, the relative dynamic elastic modulus reduction rate of the composite admixture steel slag-silica fume machine-made sand concrete is increased, and the mass loss rate reduction rate is also increased.
本发明属于机制砂混凝土技术领域，公开了一种复合掺合料机制砂混凝土、制备方法及系统，复合掺合料机制砂混凝土，机制砂取代率75％、石粉含量9％、钢渣掺量20％和硅灰掺量5％；抗冻性能测试方法，包括以下步骤：运用正交试验方法，在不同掺合料指标、机制砂石粉含量以及机制砂取代率下，以相对动弹性模量和质量损失率作为评判指标，以确定最佳性能配合比方案；运用极差分析法和方差分析法分析了各因素对复合掺合料机制砂混凝土抗冻性能影响的显著性，比较出各因素的显著程度，分析最佳掺量。复合掺合料钢渣‑硅灰机制砂混凝土在冻融循环作用下，随着冻融次数的增加，相对动弹性模量降低速率加快，质量损失率下降速度也加快。
Composite admixture machine-made sand concrete, preparation method and system
复合掺合料机制砂混凝土、制备方法及系统
JIN LIANJIE (author) / SHAO YONGHONG (author) / XU LIANG (author) / FENG SHAOLIANG (author) / CHENG ZHISHUN (author) / LI LIN (author) / WANG JIANYING (author) / XIANG SHIYIN (author) / HUAN TUJUN (author) / ZHANG HENG (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
/
C04B
Kalk
,
LIME
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
E21D
SHAFTS
,
Schächte
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