Abstract: A grouting material which comprises an ultrafine particle material having a maximum particle size of 15 micrometer or less, containing 3 to 40% by mass of cement clinker, 60 to 97% by mass of and blast-furnace slag, 0.5 to 3 parts by mass of gypsum in terms of SO3 based on 100 parts by mass of the total amount of cement clinker and blast-furnace slag, and further comprises (i) 0.7 to 7 parts by mass of calcium-aluminate-based rapid-hardening admixture, (ii) 0.01 to 0.13 parts by mass of setting retarder, and (iii) 0.2 to 1.0 parts by mass of high-performance water-reducing agent, based on 100 parts by mass of the ultrafine particle material can maintain high injectability for long, and rapidly starts to set after injected to thereby exhibit a good short-term strength.

Abstract: A grouting material which comprises an ultrafine particle material having a maximum particle size of 15 micrometer or less, containing 3 to 40% by mass of cement clinker, 60 to 97% by mass of and blast-furnace slag, 0.5 to 3 parts by mass of gypsum in terms of SO3 based on 100 parts by mass of the total amount of cement clinker and blast-furnace slag, and further comprises (i) 0.7 to 7 parts by mass of calcium-aluminate-based rapid-hardening admixture, (ii) 0.01 to 0.13 parts by mass of setting retarder, and (iii) 0.2 to 1.0 parts by mass of high-performance water-reducing agent, based on 100 parts by mass of the ultrafine particle material can maintain high injectability for long, and rapidly starts to set after injected to thereby exhibit a good short-term strength.

Abstract: An attaching device for attaching a tool to a tool manipulating arm is disclosed having a first attachment member affixed to the tool manipulating arm which is adapted to engage a second attachment member affixed to the tool. The first attachment member includes a locking device which is engageable with a cam surface formed on the second attachment member such that the engagement urges a seating surface defined on the first attachment member and a mounting surface defined on the second attachment member into sealing contact with each other. The seal effected by the contact of these surfaces hermetically seals the locking device such that it is not susceptible to contamination by the dust, water, sand, chips, oil, etc. which may be present in the working environment in which the robot is located.

Abstract: A method and apparatus for finishing the surface of a work article is disclosed wherein the article is transferred to a polishing head of a polishing machine by a multi-joint industrial robot. The polishing head may extend or retract in the direction of movement of the work article toward the polishing machine such that the force exerted on the work article by the polishing head may be kept generally constant throughout the polishing operation.

Abstract: A machining apparatus for machining a work piece wherein the work piece is held above the work stations of the machine tool base so that chips will fall downwardly during machining operations. The tools are successfully indexed to the work station so that chip removal need be accomplished only at a single place and to make the arrangement more compact.