evolution in BENTONITE WATERSTOP…     

    SperrJOINT^® ...  100% pure Bentonite

coupled with a retarded hydration initiation.

Specially formulated “skin” retards initialization of the hydration process

of the Granular 100% Natural Sodium Bentonite

SperrJOINT^®    technology
   SperrJOINT^® overcomes

the problem of instantaneous and uncontrollable

hydration experienced with Granular Sodium

Bentonite WATERSTOP when it comes

in contact with water during the normal

construction process.

About Bentonite Waterstop

   The Sodium Bentonite is Hydrophilic clay

   volcanic origin

   The BENTONITE WATERSTOP must be kept dry prior to use; exposure to water (rain water,ground water and bleed water) prior to contact with fresh concrete, will initiate premature hydration and expansion.
   This produce a low colloidal consistency (SOL state ), which renders

the Bentonite Waterstop unsuitable for effective waterproofing. 

   If the hydration process of Bentonite Waterstop commences after the placement of the second pour of concrete, Bentonite becomes a colloidal GEL that is a very effective, leak proof waterproofing barrier.

   This GEL state is produced with the MINIMUM expansive capacity within

its capability and at the same time it produces the MAXIMUM expansive force

that will be realized during the lifetime of the structure.

HOW DOES IT WORK
   The Granular Sodium Bentonite which is the heart of
the SperrJOINT^® is packaged in specially formulated film

which delays the start of the hydration process for a

period of time that is approximate to the installation

period and the cure time of the concrete.
   This delay means the Bentonite will not react to rain,
ground water or bleed water during the placement

of the material and the placement of the second concrete pour.
   The hydration and accompanying expansion of the Bentonite

used in this patented system, is effectively delayed until after

the concrete from both pours has developed sufficient strength

to withstand internal pressures.

DESCRIPTION OF SperrJOINT^® system
1) - SperrJOINT^®
       - Specially designed plastic “ skin”

         that delays the hydration and

         expansion process’s.
       - The “skin” is packed with 100%
         Natural Sodium Bentonite.
2) - Anchoring device
       - cover : Glass fiber strip sized for each

                    Sperrjoint^® section  - supplied.
       - blockjoint : metal clips        - supplied.
       - nails        : nails for powder actuated tools - supplied .

SperrJOINT^® ADVANTAGES
 Guarantees a positive waterproofing capability to
building and other types of structural foundations.
 “Time Delay Skin” prevents premature hydration

and expansion caused by rain water, ground

water and bleed water during application of

SperrJOINT^® and second concrete pour.
 NOT SUBIECT to premature, accidental

hydration and expansion as often

experienced in other systems.
 The hydration and expansion process’s

commence after the concrete sections have

been cast thereby eliminating potential damage to the structure.
 Hydration and expansion of the SperrJOINT^® do not take place until after the

concrete has realized it’s initial cure and is capable of with standing the internal pressure. Therefore potential damage to the structure is avoided.
 SperrJOINT^® technology avoids the premature hydration and

expansion of the Bentonite avoiding the muddying of the concrete, which creates bonding problems.
 SperrJOINT^® leak proof water barrier is easily placed and provides a positive waterstop, thereby assuring lower construction costs with no costly replacements or repairs.
 SperrJOINT^® WATERSTOP TECHNOLOGY, the ability to retard hydration and expansion, are designed to overcome the disadvantages and drawbacks common with earlier waterstop design.

SperrJOINT^® INSTALLATION
   SperrJOINT^® is placed on the concrete surface

with no special preparation, it is held in place

with a fiber glass mesh and the “Blockjoint”

clamps supplied with each SperrJOINT^® section.
   The clamps are fastened in place with nails for

powder actuated tool.
   SperrJOINT^® must be placed in between two

rows of reinforcing and encapsulated with a

minimum cover of concrete, 3” (7 cm ) on all side.
   The SperrJOINT^® is placed end to end along the

entire length of the structure to form a continuous

waterstop.
   The SperrJOINT^® must not be overlapped.

APPLICATION RECOMMENDATIONS
1 - The SperrJOINT^® requires no special surface

     finish for placement.
2 - Minimum cover of 3 ins (7 cm ) is required

     on each side of the SperrJOINT^®.
3 - NOTE: the lower form tie should be placed at a

     minimum 4 ins (10 cm ) above the Sperrjoint

SperrJOINT^® LIMITATIONS
SperrJOINT^® is not designed for sealing
movements joints, in such applications it must

be used in conjunction with a hydrophilic rubber

waterstop.
The SperrJOINT^® Waterstop is the most effective

waterproofing system available for cold joints.

SPECIFICATION & PACKAGING
SperrJOINT^®
- length                                              = 23·3” ( 590 mm )
- diameter (nominal value ) = 0·87” (      22 mm )
- number of Sperrjoint^® per carton:  = 71
- carton content                       = 137 ft ( 41,8 m )
- dimension of carton   = 7·8” x 7·8” x 23·7 ins
- weight of carton                  = 50 lb approx  =  (25 Kg circa)

Bentonite from WYOMING.
- Mesh (glass fiber strip ) : length = 164 ft      = 50 m
- Blockjoint (metal clips ) : number per carton = 220
- Nails                           : number per carton = 200

SHIPPING & STORAGE
Keep materials in unbroken packages,

prevent damage during transit and handling.

SHELF LIFE
Indefinite when covered.

APPLICATION TEMPERATURE
SperrJOINT® can be installed in freezing

temperatures, in hot conditions or in rain.

HEALTH AND SAFETY
SperrJOINT® has no health hazards

and is non-toxic.

ENVIRONMETALLY SAFE WITH ZERO VOC

Disclaimer

The contents in this technical litterature are based on real experiences and so they can be considered as valid even if they represent one small part of all the applicative possibilities.

It is so specified that the indications are by way of exemple only and they are not a responsability for the Producer and the Distributors all.

The contents in this technical litterature  can not prove some connection, or legal connection, or legal claim of any sort of warrantee, deriving from contract of buying and selling however expressed and formalized. 

The Orderer and/or USER is liable for the suitability of the Product for the use as expected and for the manner of use. 

Applicability of products will vary as a result of site conditions and installation procedures.

Final determination of the suitability of the information or material for use contemplated and of its manner of use, and whether the use infringes any patents is the sole responsability of the User.

The technical service of Bellcast srl is available to lend its collaboration for the preventive checks of suitability and for define application ways. 

Bellcast ha messo a punto akuyBell ^®system

riparazione definitiva di impermeabilizzazioni di strutture in falda SENZA SCAVI

reimpermeabilizzare ?  

si ...    con  Bellcast

 è   sicurezza

         in vetrina

 pannelli bentonitici

LAVORI  Bellcast

RIPARAZIONE  impermeabilizzazioni  senza SCAVI

waterstop 

pannelli bentonitici

impermeabilizzazioni bentonitiche in FALDA e CONTROTERRA

COME  impermeabilizzare  fondazioni

fidarsi è bene    ma con BELLCAST...   è  sicurezza  

    VUOI sapere il PREZZO ?

Costruzioni NUOVE    

 le costruzioni e... l'acqua

impermeabilizzazione TOTALE

o solo "CONTROTERRA"

reimpermeabilizzazione

senza  scavi

del GIARDINO PENSILE

della PAVIMENTAZIONE 

  quanto costa                           1,  2,  3 ...

getto   CONTROTERRA

scavo   "APERTO"

scavo con  "BERLINESE"

scavo con  "PALI"

scavo con  "DIAFRAMMI"

Solaio BAUSTA

Solaio PREDALLES

Solaio in C.A.

Solaio BAUSTA

Solaio PREDALLES

Solaio in C.A.