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Document ID (ISN)35794
CIS number 81-1138
ISSN - Serial title Tiefbau-Berufsgenossenschaft
Year 1981
Convention or series no.
Author(s) Knobloch S., R÷hm W.
Title A new material: Bristar
Original title "Bristar" - ein neuer Arbeitsstoff [in German]
Bibliographic information Mar. 1981, Vol.93, No.3, p.184-189. Illus.
Abstract Presentation of a new material which increases greatly in volume when dissolved in water. This substance can be substituted for explosives in certain cases. Inserted into rick, or into a concrete wall, for instance, it cracks open and disintigrates the rock or concrete after about 10 hours. It is non-toxic, noiseless, and does not cause vibration or flying particles. Its use, however, involves the hazard of caustic burns, due to its principal constituent: caustic lime. This necessitates the wearing of protective goggles and clothing. An off-limits hazard area should be fenced or marked off around the object to be disintegrated, until the operation is completed and checked. Final demolition work on buildings treated in this manner requires special safety precautions.
Descriptors (primary) caustic substances; demolition; quarrying industry; construction industry; comminution
Descriptors (secondary) calcium oxide; chemical burns
Document type D - Periodical articles
Subject(s) Construction industry
Broad subject area(s)
Browse category(ies) Mining and quarrying
Alkaline materials
Construction industry and civil engineering