Form 15 (3/31/86) NSF PROJECT IST-850 5411 EXPERIMENTS ON THE COGNITIVE ASPECTS OF INFORMATION SEEKING AND INFORMATION RETRIEVING USER QUESTIONS FOR ONLINE SEARCHES QUESTION NUMBER: 032 A1. BRIEF TITLE: Fly ash as a construction material in civil engineering A2. QUESTION STATEMENT: The main purpose of this search will be to obtain a comprehensive listing of literature on the engineering properties and various utilizations of fly ash and conditioned fly ash using cement or lime. Major uses for fly ash and fly ash admixtures that are of particular interest include: 1) load -bearing fills, 2) structural backfills, 3) soil modifiers, and 4) grouting fillers. The literature review will focus on the following items: 1) factors affecting utilization 2) factors affecting selection 3) design criteria 4) testing procedures 5) evaluation technique 6) construction procedure 7) quality controls 8) case histories In summary, the search should document research results and construction experience of lime and cement stabilized fly ash, fly ash-soil mixture, and natural fly ash. It will provide a comprehensive review of physiochemical properties of fly ash and its various conditioned admixtures. Major engineering properties including the compaction characteristics, stress - strain - strength - time relationship, compressibility, permeability, capillary action, frost susceptibility, erodibility, and leaching will also be covered in the search. TYPE OF SEARCH REQUESTED B. A precise or a broad search: Broad C. Research application: Faculty research - Civil Engineering D. Retrieve articles in English only or any language: English E. Years to be searched: No limits F. DIALOG databases suggested: Š