ریاض انجینري مشورتي او کارموندنې مرکز

14/10/2024

The temperature of asphalt during different stages is crucial for ensuring a good quality road. Here's a breakdown of the recommended temperature ranges for each stage:

1. Mixing:

Temperature: 150°C to 190°C

The mixing process involves heating bitumen and aggregates in a plant. The temperature should be high enough to ensure proper coating of the aggregates with bitumen.

2. Paving:

Temperature: 120°C to 160°C

During paving, the asphalt is transported from the plant to the site and laid on the road surface. The temperature must be maintained to ensure that the material remains workable during placement.

3. Compaction:

Temperature: 85°C to 140°C

Compaction must be completed while the asphalt is still hot and flexible. If the temperature drops too much, compaction becomes difficult, and the asphalt may not bond well, leading to premature failure.

Maintaining the correct temperature at each stage is essential to achieve a durable and long-lasting pavement.

12/09/2024

https://www.facebook.com/share/e5UJjLmXNuZ9boUx/?mibextid=xfxF2i

You will learn the specific considerations that dictate concrete damage, and the steps that you can take to prolong the life of your concrete surface in this article.

30/08/2024

د ریاض انجینري مشورتي او کارموندنې مرکز ټيم لاندې فعالیتونه ترسره کوي:
١. د انجینری( ساختماني، سرک سازي) په برخه کې د انجینرانو او ټولو هېوادوالو وروڼو ته مسلکي مشورې ورکول او د دوی مشکلات حل کول.
٢. انجینرانو ته مناسبې دندې پیدا کول.
نوټ: خپل اړوند اسناد مو لاندې ذکر شوي ایمیل ادرس ته رواستوی. همدارنګه د لا زیاتو معلوماتو لپاره زمونږ سره د واتساپ د لاندې لینک په واسطه یو ځای شی.
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28/08/2024

NCAT TEST SECTION
NCAT TEST SECTIONIntroduction
The National Center for Asphalt Technology (NCAT) is a leading pavement research center located in the southern United States. It features the world’s only high-speed, full-scale accelerated pavement testing facility. When Kraton first developed the HiMA technology, NCAT was the perfect place to demonstrate its capabilities.

Challenge
While it is simple to design a pavement to be either rut resistant or crack resistant, it is not easy to make it resistant to both at the same time. The tradeoff becomes even more challenging to manage when the pavement thickness diminishes. This issue is precisely what we wanted to accomplish with our N7 test section.

Resolution
We built a three-layer pavement over 14 cm (5.5 in) of aggregate base. The 3.2 cm (1.25 in) wearing course was assembled with a 9.5 mm NMAS dense-graded mixture. We paved the base course with two layers, each 5.7 cm (2.25 in) thick and made with a 19 mm NMAS dense-graded mixture. All binder courses featured the HiMA bitumen technology. Overall, the three layers amounted to 14.6 cm (5.75 in) thick pavement. Compared to the control section made with conventional PMB, the HiMA section was 18 percent thinner. HiMA mixes were produced at 174°C (345°F) and compacted at 115-147°C (240-295°F).

After 20 million equivalent single axle load (ESAL) applied to each section over five years, the HiMA section resulted in 70 percent less rutting. It also had no bottom-up fatigue cracking while the control had 18 percent area cracks.

The NCAT experiment proved that it is possible to make a pavement thinner and still make it last longer than the conventional alternative. Since then, HiMA has been successfully implemented in numerous places around the world, bringing along social, economic and environmental benefits.

26/08/2024

سلامونه نېکې هیلې او احترامات مې ومنئ!
د ریاض انجینري مشورتي او کارموندنې مرکز په پام کې لري چې هغه انجینرانو وروڼو ته چې د کار او دندې په لټه کې دي، د دوی د وړتیا مطابق مناسبې دندې پیدا کړي. له دې کبله، انجینران کولای شي چې لاندې ذکر شوو برخو کې خپل غوښتنلیکونه لاندې ایمیل ته رواستوي، ترڅو د دوی اسنادو ته په کتو سره بعدي مراحل طۍ کړو.
1. Quality Control Engineers
2. Site Engineers
3. Lab Managers
4. Lab Technicians
5. Bridge/ Structure Engineers

Contact Email Address: [email protected]