...E Öztekin; T Cimilli The number of cement plants in Turkey increased from 1 in 1911 to 39 in 1985 and the yearly cement clinker production capacity from 20 000 to 21 000 000 metric tons, respectively. Production of blended cements started in the late 1960s and in 1970 accounted for 20% of the total...

... deviation of all single-specimen smoothed shrinkage curves at one time is almost the same as (about 95% of) the standard deviation of the original unsmoothed data for that time. concrete cements shrinkage drying tests measurements statistics probabilistic analysis random errors shrinkage...

...G Bradley; IM Howarth This paper attempts to describe some of the benefits that can be gained from adopting a “purpose building” approach to the synthesis of polymeric materials as dispersants for cement. Our work with copolymers of acrylic or methacrylic acids and their hydroxy alkyl esters has...

... are presented for selected cement tests. standards precision cements construction materials References Form and Style for ASTM Standards , 6th ed., American Society for Testing and Materials , Philadelphia , 05 1983 , p. 8 . ASTM Subcommittee C01.94 on Statistical Methods , “ Use of CCRL...

...A Cattaneo; G Frigione The sulfate resisting portland cement is obtained from a special portland cement clinker with low-tricalcium-aluminate content. In Western Europe another cement is used more for constructions in sulfate environments than portland low-tricalcium-aluminate cement, the blast...

...LJ Struble This comprehensive bibliography covers analysis of portland cement and concrete by quantitative X-ray diffraction. The citation and an abstract is provided for each reference. The bibliography was prepared at the request of the quantitative X-ray diffraction analysis task group of ASTM...

...BM Capon; PB Layne; D Watson For more than half a century combustible materials have been used to a limited extent to substitute partially for coal, oil, or gas as the main fuel for cement manufacture, and the continuing increase in price of the conventional fuels is increasing the incentive to do...

...AI Safa; KE Daugherty; WA Mallow; JJ Dziuk; JE Funnell The calcination of calcium carbonate in a cement or a lime kiln requires approximately two to four times the theoretical quantity of energy predicted from thermodynamic analysis depending upon the type of cement kiln used. The potential...

... Materials (C 802). Evaluation of the data has confirmed the validity of the test method and appropriate precision statements have been developed. cements hydraulics blast furnaces slags slag activity index precision TECHNICAL NOTE T. W. Lesniak I Precision of the Proposed Test Method to Measure...

...-modified mortars using various polymer dispersions were prepared with different polymer-cement ratios and tested for weatherability, freezing-thawing resistance, heat resistance, and chemical resistance. The test results demonstrate that most polymer-modified mortars have better durability performance than...

...BG Kemp This report outlines the results of testing to see if 1-1-1 trichloroethane can be substituted for carbon tetrachloride as the displacement medium in the ASTM standardized cement bleeding tests. This was necessary because highly toxic carbon tetrachloride is now banned from laboratory use...

...RJ Gulyas; MF Garrett The past theory of the action of shrinkage-compensating cements is discussed and recent findings that refute the internal compressive stress concept are presented in favor of the American Concrete Institute (ACI) Committee 223 net positive elastic strain behavior (spring...

...D Manmohan; PK Mehta Durability of concrete is greatly influenced by the permeability of the cement paste which in turn is governed by the pore size distribution. Some mineral and chemical admixtures are known to enhance the durability of portland cement concrete. The objective of this work...

...FJ Hogan; JW Meusel This paper covers the evaluation of a ground granulated blast furnace slag as a partial replacement for portland cement in mortars and concrete. The ground slag was evaluated for strength-producing properties as well as durability performance when used to replace 40 to 65...

...-load versus time-trace is presented. Results of tests conducted on asbestos cement and fiber-reinforced concrete are presented and are compared with those predicted using the analytical model. It is concluded that the model developed is satisfactory in predicting inertial loading effects. cements...

...SL Marusin The determination of cement content of hardened concrete using the maleic acid (MMA) extraction method was evaluated using laboratory-prepared samples. The effect of variations in the strength of the maleic acid solution and sample digestion time were evaluated. The method was found...

... That Will Improve the Sulfate Resistance of Concretes REFERENCE: Dunstan, E. R., Jr., "A Possible Method for Identifying Fly Ashes That Will Improve the Sulfate Resistance of Concretes," Cement, Concrete, and Aggregates, CCAGDP, Vol. 2, No. 1, Summer 1980, pp. 20-30. ABSTRACT: Current methods for determining...

...GR Gouda; DM Roy By proper application of heat and pressure to a cement paste having a very low water/cement ratio W/C , a hard, strong, dense cylindrical specimen is formed in a very short time. Specimen preparation is simple and only a few grams of cement are required. Compression and splitting...

... for the Determination of Consistency and Consistency Retention (Board Life) of Masonry Mortars REFERENCE: Conway, J. T., "A Method for the Determination of Consistency and Consistency Retention (Board Life) of Masonry Mortm Cement. Concrete, and Aggregates, CCAGDP, Vol. 2, No. 2, Winter 1980, pp. 89-91. ABSTRACT...

...D Stark Numerous instances have been recorded where the use of low alkali cement with certain volcanic aggregates has failed to prevent deleterious alkali-silica reactivity. Present testing using the ASTM Test for Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method) (C...