تشطيب سطحي محسّن: يمكن للإضافات مثل عوامل احتجاز الهواء تحسين تشطيب الخرسانة ومظهرها عن طريق منع العيوب مثل التشقق, قرص العسل, أو الغبار السطحي, ضمان على نحو سلس, سطح احترافي.

Specification of High Tenacity PVA Fiber Concrete Admixture for UHPC and High Ductility Concrete

High Perseverance PVA Fiber Concrete Admixture

Purpose and Application

This admixture utilizes high persistence polyvinyl alcohol (بولي) ألياف. It is produced ultra-high-performance concrete (UHPC) and high ductility concrete. These fibers boost durability, مقاومة الانقسام, والمتانة. Contractors utilize them in bridges, الأنفاق, عناصر مسبقة الصب, and seismic-resistant frameworks.

الميزات الرئيسية

The PVA fibers are fine, ثابت, وتوزع بالتساوي في المزيج. They bond well with cement paste. This produces a strong inner network that quits cracks from dispersing. The fibers do not glob or ball up during blending. They keep their strength even in wet or alkaline problems.

Each fiber has high tensile stamina and elongation at break. This provides the concrete much better power absorption and contortion capability. The final product shows strain-hardening behavior– suggesting it gets stronger as it flexes somewhat prior to failure. That makes it more secure under unexpected loads or impacts.

المواصفات الفنية

– نوع الألياف : High persistence PVA
– طول : 6 مم ل 18 مم (البدائل المشتركة).
– مقاس : 20– 40 ميكرون.
– صلابة الشد : ≥ 1,600 MPa.
– استطالة عند الاستراحة : 6% ± 1.5%.
– كثافة : 1.3 جم/سم خمسة.
– عامل الانصهار : > 230 درجة مئوية (breaks down without melting).
– pH Resistance : Secure in pH 3– 13.

معايير الاستخدام

يضيف 1.0% ل 2.5% by quantity of cementitious products. تخلط جيدا على الأقل 5 minutes after including fibers. Use typical concrete blending devices. ليس هناك حاجة لتسليم خاص. Shop in a dry area away from wetness. الحفاظ على الحقائب آمنة عند عدم استخدامها.

This admixture fulfills worldwide criteria for fiber-reinforced cementitious composites. It works well with silica fume, الرماد المتطاير, and various other usual UHPC active ingredients. والنتيجة موثوقة, high-performance product that lasts longer and executes much better under anxiety.

Applications of High Tenacity PVA Fiber Concrete Admixture for UHPC and High Ductility Concrete

Applications of High Persistence PVA Fiber Concrete Admixture

خرسانة أكثر قوة للمشاريع الصعبة

High persistence PVA (كحول البولي فينيل) fiber is a key ingredient in advanced concrete mixes like UHPC (Ultra-High Efficiency Concrete) and high ductility concrete. This admixture improves efficiency where routine concrete fails.

Builders add PVA fibers to manage fracturing. The fibers hold the concrete with each other also after it starts to fracture. This gives the product a lot more flexibility and stops abrupt failing. Structures remain more secure under stress from earthquakes, heavy lots, أو التأثير.

حيث يتم استخدامه

This fiber-enhanced concrete jobs well in bridges, الممرات, وناطحات السحاب. It’s additionally typical in precast elements like wall panels and light beams. These components need to be light yet strong. PVA fibers help reduce weight without losing toughness.

In seismic areas, designers select high ductility concrete with PVA fibers. The mix flexes as opposed to damaging throughout shakes. Repair work on old frameworks likewise uses this material. It bonds well with existing concrete and lasts longer.

Why It Stands apart

PVA fibers resist alkali, so they do not break down inside concrete with time. They mix equally and do not glob. This ensures consistent high quality in every batch. The outcome is a smooth surface finish with less issues.

Professionals find it easy to location and surface. The fibers do not conflict with pumping or troweling. Projects relocate much faster with much less rework.

This admixture cuts long-term expenses. Structures require less repairs and last decades much longer. Upkeep timetables shrink. Safety and security margins grow.

High persistence PVA fiber transforms common concrete right into a high-performance product. It fulfills modern-day demands for durability, أمان, والأداء. From framework to design, it supplies trusted results where performance matters most.

ملف الشركة

نحن الشركة الرائدة عالميًا في مجال الخرسانة خفيفة الوزن وحلول الرغوة الهندسية المتقدمة. معروفة عالميًا بالتزامها بالبحث, ابتكار, والخبرة التطبيقية, نحن نقدم حلول الرغوة الهندسية منذ أوائل عام 2012.

يمكننا توفير منتجات ذات جودة عالية من الخلطات الخرسانية والخرسانة الرغوية في جميع أنحاء العالم.

لدى الشركة قسم فني محترف وقسم مراقبة الجودة, مختبر مجهز تجهيزا جيدا, ومجهزة بمعدات اختبار متقدمة ومركز خدمة العملاء بعد البيع.

إذا كنت مهتما, لا تتردد والاتصال بنا.

قسط

تي/تي, ويسترن يونيون, باي بال, بطاقة الائتمان الخ.

شحنة

عن طريق الجو, عن طريق البحر, بواسطة صريحة, حسب طلب العملاء.

5 FAQs of High Tenacity PVA Fiber Concrete Admixture for UHPC and High Ductility Concrete

الأسئلة المتداولة: High Tenacity PVA Fiber Concrete Admixture

What is high tenacity PVA fiber used for?

High tenacity PVA fiber is added to ultra-high-performance concrete (UHPC) and high ductility concrete. أنه يحسن المتانة, يتحكم في التشقق, and helps the concrete bend without breaking. This makes structures safer and longer lasting.

How does PVA fiber improve concrete performance?

PVA fibers spread evenly through the concrete mix. إنهم يجمعون الشقوق معًا بعد أن تتشكل. This gives the concrete better energy absorption and resistance to impact. The result is a material that stays strong even under heavy stress or sudden loads.

Can I use PVA fiber with other admixtures?

نعم. PVA fiber works well with common chemical admixtures like superplasticizers and retarders. Just follow mixing instructions carefully. Good dispersion is key to getting full benefits.

ما هي الجرعة التي يجب أن أستخدمها؟?

تتراوح الجرعات النموذجية من 0.5% ل 2.0% حسب حجم الخليط الكلي. For UHPC, 1.5% ل 2.0% أمر شائع. For high ductility concrete, 1.0% ل 1.5% often gives the best balance of strength and flexibility. Always test your specific mix design first.

هل تؤثر ألياف PVA على قابلية التشغيل؟?

Adding PVA fiber can reduce flow slightly. Use a high-range water reducer to keep the mix easy to place. Proper mixing time also helps fibers disperse fully without clumping. This keeps the fresh concrete workable and the hardened product uniform.