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concrete steel resin rockbolt without longitudinal rib
concrete steel resin rockbolt without longitudinal rib

concrete steel resin rockbolt without longitudinal rib: 1)reasonable structure; 2)high strength; 3)great pretightening load

concrete steel resin rockbolt without longitudinal rib executes MT146.2-2002 standards,and is maked by special processing technic,the strength of thread section which possesses the features of high capability on bending & shearing is greater than rod, be new kind of rockbolt.It possesses the feature of high strength,reasonable structure,great pretightening loads,and can adjust direction of force automatic, increase force of constraint to wall rock.

Its mainly used in kinds of engineering for high strength and permanent support,,such as laneway railway,hydropower.

Technical Parameter:

specification

Nominal dia.(mm)

Nominal sectional area(mm)

Yield load(KN)

Breaking load(KN)

Theoretical weight (kg/m)

BHRB335

BHRB500

BHRB600

BHRB335

BHRB500

BHRB600

20

20

326.85

105

163

190

155

210

260

2.47

22

22

380.13

125

190

230

185

250

310

2.98

Note:The above parameter is for your reference only,it can be modified without separate notification.

concrete steel resin rockbolt without longitudinal rib

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