![](/images/spring/110.jpg)
![](/images/spring/313.jpg)
![](/images/spring/113.jpg)
![](/images/spring/256.jpg)
![](/images/spring/100.jpg)
![](/images/spring/307.jpg)
![](/images/spring/169.jpg)
![](/images/spring/271.jpg)
![](/images/spring/85.jpg)
![](/images/spring/341.jpg)
![](/images/spring/109.jpg)
![](/images/spring/182.jpg)
![](/images/spring/83.jpg)
![](/images/spring/280.jpg)
مطابق با مبحث نهم مقررات ملی ساختمان، ویرایش 1392، بند 9-3-4-1 (ضوابط حمل و نقل، تحویل و نگهداری سنگدانههای مصرفی در بتن)، رعایت نکات زیر در مورد سنگدانههای درشت مورد استفاده در ساخت سازههای بتنی الزامی است: 1. به طور کلی، شرایط نگهداری شنها باید به گونهای باشد که ذرات ریز و درشت از یکدیگر جدا نشوند. 2. شنهای با حداکثر اندازه 38 میلیمتر یا ک...
![whatsapp](/images/whatsapp.png)
![](/images/spring/81.jpg)
![](/images/spring/333.jpg)
![](/images/spring/21.jpg)
![](/images/spring/248.jpg)
![](/images/spring/143.jpg)
![](/images/spring/281.jpg)
![](/images/spring/91.jpg)
![](/images/spring/285.jpg)
![](/images/spring/94.jpg)
![](/images/spring/196.jpg)
![](/images/spring/170.jpg)
![](/images/spring/335.jpg)
![](/images/spring/82.jpg)
![](/images/spring/277.jpg)
![](/images/spring/167.jpg)
![](/images/spring/343.jpg)
![](/images/spring/146.jpg)
![](/images/spring/301.jpg)
![](/images/spring/12.jpg)
![](/images/spring/214.jpg)
![](/images/spring/80.jpg)
![](/images/spring/204.jpg)
![](/images/spring/27.jpg)
![](/images/spring/202.jpg)
![](/images/spring/28.jpg)
![](/images/spring/309.jpg)
![](/images/spring/11.jpg)
![](/images/spring/225.jpg)
![](/images/spring/66.jpg)
![](/images/spring/235.jpg)
![](/images/spring/122.jpg)
![](/images/spring/315.jpg)
![](/images/spring/36.jpg)
![](/images/spring/268.jpg)
![](/images/spring/125.jpg)
![](/images/spring/293.jpg)
![](/images/spring/22.jpg)
![](/images/spring/277.jpg)
![](/images/spring/34.jpg)
![](/images/spring/276.jpg)
![](/images/spring/43.jpg)
![](/images/spring/299.jpg)
![](/images/spring/170.jpg)
![](/images/spring/259.jpg)
![](/images/spring/26.jpg)
![](/images/spring/285.jpg)
![](/images/spring/70.jpg)
![](/images/spring/324.jpg)
![](/images/spring/164.jpg)
![](/images/spring/274.jpg)
![](/images/spring/56.jpg)
![](/images/spring/290.jpg)
![](/images/spring/34.jpg)
![](/images/spring/215.jpg)
یک پیام ارسال کرد