Road Surface Urgent Repair Material

Road Surface Urgent Repair Material

Introduction

CSA Concrete Road Facing Urgent Repair Material is obtained by special Rapid-hardening Sulphoaluminate cement with composite special admixture, this product has passed appraised science and technology achievement by Hebei province ,got success apply in Haerbin Airport ,Mudanjiang Airport for road surface urgent repair.

Properties

1.    Special applicator was not necessary while operating,, just need mixed repair material,  sand and crushed stone with water in designed ratio, so convenient for operating.
2.    This product can ensure working life more than 20mins with a higher strength. From         mixing, concrete road surface resume working just need 4 hours, so it is an ideal urgent repair material for airport and expressway, etc.
3.    For based on special rapid-hardening sulphoaluminate cement, this product have         excellent sulfate-resisting and seawater, also can avoid the damage from alkali aggregate reaction.
4.    Low rate of batch water with its slight expansion make this material have a high degree of compaction beside excellent capacity about breeze-thaw resistance and salt.
5.    Excellent adhesive is to make the interface between new and old concrete firmly bond.

Type
Suitable temperature for using
Low temperature
-10℃～10℃
Normal temperature
10℃～25℃
High temperature
25℃～35℃

Specification

Working life
Compressive strength (MPa)
4h
1d
7d
28d
＞20mins
≥30
≥40
≥50
≥55

Application area

1.  Water, sand and stone should be neutral while they are sensitive to acid and alkali.
2.  The workability should be adjusted by special admixture, it is prohibited from adding water to improved concrete performance.
3.  Strength development is closely relevant to the temperature, it’s need choose suit product according to working temperature.
4.  The product should be used out within working life, while prohibited mixing again for using.
5.  From mixing with water within half an hour, compacting the repair concrete with a vibrator and screed surface, It is prohibited vibrating after concrete losing its fluidity.
6.  While using in a low temperature environment, it should be covered and curing for a long time.

Application Method

1.  Working surface should be a rigid and need watering before repaired, meanwhile, clear the contaminant and ponding of water.
2. According to the mix proportion of Cement based material/sand/crushed stone/water=1/1.5/1.5/0.27-0.3,and the water can be adjusted by actual demand.
3.  Cement based material should be added with admixture while mixing, then feeding the mid-sand, crushed stone and water, stir for 5mins better.
4.  Using in negative temperature environment, it should be use hot water and feeding turning should be according to sand first, then crushed stone and water, with the binder last. Adjustment of water temperature should be controlled well to ensure placing temperature is higher than 5℃.
5.  Select the clean water accord with TGJ63 standard of concrete mixing water beside accord with the JGJ standard of medium sand and crushed stone.

Storage

1.  There are two bags with basic material and special admixture packed by carton.
2.  Shelf life is six months.
3.  The product should be stored in dry place, far away from wet and used up after opened.





Note: Edit by Jack Young, 2011-11-02,as references only. For more informations, please contact:
cell phone no.: +0086 158 1032 6158 or mail box: csacement@gmail.com

online: yangjian1886@hotmail.com (MSN)   yangjian1886 (Skype)

Comments

Post a Comment

Popular posts from this blog

CSA cement ( CSA binder )

Introduction General characteristics CSA Cement, also named Calcium Sulpho Aluminate Cement with grade: 42.5, 52.5, 62.5, 72.5, 82.5, 92.5, is a hydraulic binder based on calcium sulpho aluminate, rather than calcium aluminates which are the basis of Calcium Aluminates Cement or calcium silicates which are the basis of Portland Cement. It can be used on its own (with a Lithium accelerator), or with an Anhydrite, Portland cement mix, Metakaolin or a combination of all. CSA Cement has the benefit of being readily adaptable to suit many different applications where both rapid set and / or high early strength gain are required. It yields controlled set, enhanced early strengths, shrinkage compensation or expansion and sulphate resistance. Uses include any cement-based product in need of these properties. CSA Cement products exhibit a range of properties to suit a wide spectrum of cement-based applications, like fast setting cements, self-leveling or self-smoothing compounds, sel...
Read more

CSA cement ( Rapid set cement )

CSA cement is one type of cement has the advantages of super high early and final strength, low alkaline, fast setting time, rapid hardening, frost & corrosion resistance, etc. Due to its wonderful performance, it can be used in many applications like mining industry, bridge decks, airport runways, patching concrete roadways, sidewalks, pavements, etc. where rapid strength developments are necessary. CSA cements offer tremendous advantages over Portland cement in terms of strength, setting time, speed and greeness .It main features are high initial and final strength, concentrative hydrating heat release, fast setting time, good fluidity, high frost and corrosion resistance, impermeability, low carbon, etc. It can be used in the following areas: 1. High strength cement & concrete 2. Dry mortars, such as tile adhesive, high strength grouting materials, self-leveling materials, rapid setting mortars, etc. 3. Concrete repair materials, Pavement repairs and other repair...
Read more