منتديات للبناء فنون - عاجل جدا استشارة في الاعمدة بعد التصليح

السلام عليكم ورحمة الله وبركاتة
عندي اعمدة في الدوار الثاني كان فية تعشيش وتم الاصلاح
وابي المشورة منكم الان لاني نوي اشد على المبنى اربعه ادوار
والان سيتم لكم ارفاق صورمن بعض الاعمدة التي يوجد فية تعشيش قبل اصلاحه
ويضاء سيتم لكم ارفاق صور بعد اصلاحها بالمود

واليكم بعض الصور قبل الاصلاح

http://im85.gulfup.com/cLTNyZ.jpg

http://im62.gulfup.com/UWstzb.jpg

http://im63.gulfup.com/dOclOO.jpg

وهناء الصور بعد التصليح

http://im57.gulfup.com/mJ0QQq.jpg

http://im87.gulfup.com/bhas4i.jpg

http://im86.gulfup.com/K7x5kr.jpg

http://im75.gulfup.com/0DPkP6.jpg

عدد الاعمدة التي تم اصلاحة 22 عمود جميعها في الدوار الثاني
ونا في الوقت الحالي نوى اشد عليها دورين اضافين
ليكون بعد ذلك المبنى متكون من رابعة ادوار

وهذة هي موصفات المادة التي تم استخدمة

Renderoc LA Xtra
constructive solutions
Page 1
Renderoc LA Xtra
Shrinkage controlled, fluid micro-concrete for structural repairs of all types
Uses
Renderoc LAXtra is suitable for mass infill to structural repairs in all types of load-bearing situation. Typical applications would include, but not be limited to, the following: Repairs to columns suffering from major loss of section. Soffit repairs where heavy load-bearing is required. Repairs to restricted access areas, where use of hand applied mortars would prove impractical. Repairs requiring high fluidity e.g. heavily congested steel or repairs into re-entrant angles/concealed voids. Any repairs requiring significant levels of load-bearing.
Advantages
Renderoc LAXtra features Dimensional Stability Technology - a new materials technology which controls the rate of drying shrinkage such that, when used correctly:
i. the dimensions of the repair remain stable; and thus
ii. eliminating failure, due to shrinkage cracking.
This in turn leads to a series of associated benefits: Cost effective - shrinkage control enables repairs to be completed ‘right first time’. Enhanced durability - works in tandem with extremely low permeability to prolong effective working life. Compatibility - aligns performance closer than ever before, to that of host concrete. User friendly - specifically developed to provide an easy-to-apply product, suitable for local conditions. Definable performance - positive benefits are easily demonstrated via a single, simple measurement.
Description
Renderoc LAXtra is supplied as a ready to use blend of dry powders and selected aggregates, which requires only the addition of clean water to produce a highly consistent, fluid micro-concrete suitable for all load-bearing situations.
Properties
The following typical results were obtained at a water powder ratio of 0.133.
Test method
Typical results
Drying shrinkage to ASTM C157-93 7 days:
28 days:
< 300 microstrain
< 500 microstrain
Permeability:
(DIN 1048 Part 5)
< 10 mm
Flexural strength:
(BS 6319 Part 3)
> 9 N/mm2 at 28 days
Tensile strength:
(BS 6319 Part 7)
> 5 N/mm2 at 28 days
Compressive strength:
(BS 1881 Part 1161
> 39 N/mm)
2
> 45 N/mm at 3 days
2
> 60 N/mm at 7 days
2 at 28 days
Water absorption:
(BS 1881 Part 121)
< 2%
Note 1: 100 mm cubes, air cured at 25o
Design criteria C.
Dimensional stability Technology is a major step forward in the general compatibility of repair mortar systems with the host concrete, and the control of shrinkage in particular.
Attention to the basic design criteria given below should ensure that the full benefits of this technology are gained in use:
(i) Renderoc LAXtra is designed for large volume repairs, typically in excess of 50 mm deep. The product can be applied in sections generally between 50 and 200 mm thick, greater thicknesses may be achievable, depending upon repair configuration and location together with the volume of reinforcing steel. Consult the local Fosroc office for more information.
(ii) In situations where a substrate/repair barrier is required, or enhanced bond strength/working time is required, or where the substrate is likely to be damp (e.g. seawalls, quays etc.), Nitobond EP epoxy bonding agent should be used.
(iii) Water addition = 2.7 litres per 20 kg bag.
Under no circumstances should part bags be used or additional water be employed. Either of these two actions will adversely affect material performance, automatically invalidating Fosroc’s standard product guarantee.