precision grouting of machinery and equipment base plates

Product Overview

Description

precision grouting of machinery and equipment base plates

Introduction:

BiaoYuan superfine cement material is made of high-strength ultra-fine cement , bulking agents , slag and other additives, special equipment and refined a new generation of ultra-fine inorganic rigid grout material.
Feature:
A:Non-toxic, tasteless, non-polluting groundwater and the environment , is environmentally friendly filling material.
B:The slurry no shrinkage upon curing phenomenon , high stone strength, durability , aging, good barrier properties .
C:The slurry flow is good , than the material of the surface area of ??800 square meters / kg , the average particle diameter of 5μm or less, so its high stability and can be irrigated .
D:The slurry setting time : according to the project needs to be adjusted.
E:The slurry construction process is simple , easy to operate , can be large-scale use .
Application:
1):Hydraulic Engineering Foundation and the dam body filling cracks ;
2):Pouring underground water curtain , cut off water penetration , the overall impermeability plugging ;
3):Strengthening and improving the mechanical strength of soft soil and rock , concrete structure repair and restore its integrity ;
4):Correct cracking dams and high-rise buildings due to instability caused by uneven ground subsidence caused by inclination ;
5):Roads, bridges, airport runways and other ground subsidence complement pulp reinforcement ;
6):Various underground buildings pretreatment before excavation and drilling in complex geological formations drilled hole in the solid wall of protection , only plugging Bay and other projects ;
7):Quicksand layer of sand fixation and mucky soil consolidation of complex formation .

Program		A Standard type	B Early-strength type
Fluidity(mm)	initial value	≥380	≥380
	30min retention value	≥340	/
Flow cone method	initial value	14~22	/
	30min retention value	≤30
Compressive Strength(MPA) 40×40×160(mm) Specimen	2h	/	≥15
	1d	≥20	≥20
	3d	≥40	≥40
	28d	≥60	≥60
Vertical expansion Rate (%)	3h	0.1~3.5
	Difference between 24h and 3h expansion	0.02~0.5
Exudation rate (%)		0
Chloride ion content (%)		≤0.06	/
No rust on the reinforcement of the steel bar		NO
Material dosage( kg/m3)		1800
Operation Time(min)		45	20
Lowest construction temperature( ℃)		5	-15

Construction Technology:
A:For interstitial spaces of different sizes . Different soil geological environment, different grout conditions, different strength parameters required to determine the appropriate water-cement ratio ( water-cement ratio of the slurry usually calling range is 0.5 to 4.0 ) , stirring with an electric mixer until homogeneous . The slurry was then poured into a bucket of grouting .
B:The delivery nozzle portion grouting machine and fixed in advance on the basis of fixed docking packers , grouting machine is turned on the power , open the valve grouting . And grouting pressure control within a certain range ( typically within the range of 0.1 ~ 0.5MPa Different basic conditions , different water-cement ratio , the required injection pressure is different. Grouting pressure is too large, it may form split injection pulp , can not even penetrate . filling pressure is too small , it can not penetrate to the tiny space ) .
C:Upon completion of filling grout holes closed .
D:When the grout area is large , it can be segmented grouting.

Notice:
A:Ultrafine grout must (1500rpm) was stirred for at least 5 minutes using a high speed stirrer , during the grouting process , but also stirred with a low speed stirrer to prevent sedimentation .
B:Fine cement grout is a cement base grouting material , during use , to wear gloves and eye protection , dust masks , wearing overalls , to prevent burn eyes and skin . If less splashed into the eyes , rinse immediately with plenty of water , and consult a physician ; if accidentally swallowed, immediately drink plenty of water , and consult a physician .

Maintenance:

When the grout surface hard enough to achieve a state immediately after the final setting of the exposed grout is recommended to use wet sacks , plastic film or curing agent .
Maintenance time at least above 3~7 days, to high temperature, severely cold, under gale poor weather condition, suitable suitable extension maintenance time.

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