Nghĩa của từ water cement bằng Tiếng Việt
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Đặt câu có từ "water cement"
1. When the low water - cement ratio gets off, concrete self - desiccation shrinkage produces easily.
2. The method is primarily based on the Abrams' law relating compressive strength and water–cement ratio.
3. Two water/cement ratios, two types of coarse aggregates and the incorporation of natural pozzolans are included as variables.
4. The content of cementitious material is high and the water/cement ratio is low; the maximum size of aggregate is small.
5. Key words: durability, freeze–thaw cycle, silica fume, scaling, curing, spacing factor, water/cement ratio, compressive strength, cement type, entrained air, aggregate.
6. A series of air-entrained concrete mixes was made at a water/ cement ratio of 0.42 with a slump of 50 mm.
7. Concrete strength enhancement can be achieved through use of superplasticizer Admixtures to produce a low water/cement ratio giving high performance concrete.
8. The material under investigation was ordinary conerete of B 20 class, different in the sizes of coarse aggregate and water-cement ratio of the same value w/c=0.55.
9. The strength of the concrete depends upon many factors like individual Compressive strength of its constituents (Cement, Sand, aggregate), quality of materials used, air entrainment mix proportions , water-cement
10. The experimental data allow establishment of the relevant influence of the shape of the coarse aggregates on compressive strength, on cement consumption and on the water/cement ratio values of concrete.
11. The method involves forming a mixture comprising water, cement, fly ash, optionally other cementitious materials, aggregate, conventional chemical admixtures, and an air entrainment agent and agitating the mixture to entrain air therein.
12. Some important parameters like the water/cement (W/C) and cement/powder ratio (C/P), type of filler (limestone filler and fly ash), type of aggregate and type of cement are considered.
13. The influence of maximum aggregate size, water-cement ratio, cement content, cement type and quality, specimen humidity, static compressive strength and loading/casting direction upon the uniaxial impact tensile strength was studied.
14. Natural aggregates with three different gradings have been used to produce concretes with a constant water cement ratio of 0.5 and cement contents varying between 300 kg/m3 and 425 kg/m3.
15. Results of a wide-ranging investigation of the abrasion resistance of concrete are reported and the influence of water/cement ratio, curing, workability, maximum aggregate size and the constituent materials is discussed.
16. The method is based on an extensive investigation in which a new relationship is put forward between the percentage by volume of aggregate and the water/cement ratio, given constant consistence and grading.
17. The test programme was designed to analyze the effects of the water/cement ratio, the type of cement, the type of coarse aggregate, the duration of curing, and the air-void spacing factor.
18. As a matter of fact, transfer phenomena, including the absorption of water by capillarity, play an essential role in the durability of recycled aggregate concrete (RAC in short) considering their high total water/cement ratio.
19. The effects on dynamic properties of curing conditions, water-cement and aggregate-cement ratios, the type of aggregate, mode of vibration and of the presence of rigid inclusions in a relatively soft matrix are investigated.
20. Admixture in Concrete is used to develop special properties in concrete like to increase the workability of concrete at the same water-cement ratio, boosting initial setting time, delay the initial setting time, to increase the density of concrete, to develop small air bubbles in concrete or to increase workability by reducing water content in