New highway bridge gauge stress Pipeline pressure drop and squeeze
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Contact:13925840771u0026nbsp;Manager Zhang
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This product has passedISO9001—2008 International Quality Management System Certification
ExecuteJTG/T F50-2011《Highway Technical Specification for Bridge and Culvert Construction' strong>
Prestressed pipeline grouting agent is a composite admixture package that integrates high water reduction, micro expansion, anti-segregation, and reinforcement. When used, it is used with P·O 42.5 cement according to 1:9 (weight Than) Proportion to cooperate with construction.
One. Product use:
Widely applicable to various beam prestressed pipeline grouting and equipment foundation, anchor rod and other components grouting, at the same time It can also be used to repair defects such as grouting, loose concrete, cracks and holes in nuclear power plant shells.
Two. Features:
※Low water-binder ratio: The water-binder ratio is only 0.27±0.01;
※High fluidity: the fluidity of the slurry can reach 10-17S, and the fluidity will remain within 25S after 60min;
※Suitable setting time: initial setting ≥5h, final setting ≤24h;
※High stability: 3h free bleeding rate of slurry and 4h inter-wire bleeding rate are both 0;
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※Micro-expansion: 3h produces 0~2% expansion, 28d expansion rate is controlled between 0~2%;※Early strength and high strength: 1d compressive strength≥15Mpa, 28d compressive strength≥50Mpa;
※High durability: 28d's frost resistance level is greater than F500, 28d's chloride ion diffusion coefficient 1.25×10-12m2/s;
Three. Main technical parameters
< tr class='firstRow'>Test items< /span> | HY-200 indicator | chloride ion content,% | ≤0.04 |
setting time, h | initial condensation | ≥5 |
Final coagulation | ≤24 |
Liquidity,s | < span style='padding: 0px; margin: 0px; text-align: left; transition: all 0.2s linear 0s; font-family: Microsoft Yahei; font-size: 14px;'>machine flow rate | 10~17 |
< tr>30min fluidity | 10~20 | bleeding rate,% | 3h capillary bleeding rate | 0 |
24h free bleeding rate | 0 |
Pressure bleeding Rate,% | 0.22MPa | < strong style='padding: 0px; margin: 0px; text-align: left;'>≤1 |
0.36 MPa | ≤1 |
Compressive strength, MPa< /p> | 7d | ≥40 |
28d | ≥50 | < /tr>
flexural strength, MPa | 7d | ≥6.5 |
28d< /p> | ≥10 |
< td colspan='2' rowspan='2' style='padding: 0px; border-left: 1px outset windowtext; border-right: 1px outset windowtext; border-top: none; border-bottom: 1px outset windowtext; background: rgb(255, 255, 255);' width='232' valign='center'>free expansion rate
3h | 0~2 | < /tr>
24h | < p style='padding: 0px; margin: 0px; text-align: left; transition: all 0.2s linear 0s; line-height: 24px;'>0~ 3 |
Effect on steel corrosion strong> | no rust |
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