mass concrete
Study on Strength Development Properties of the Internal Characteristics of Mass Concrete
... Large concrete structures such as nuclear power facilities include mass concrete members, within which concrete strength development is subjected to the effects of high temperatures due to ...
8
Early Age Thermal Cracking of Mass Concrete Footings on Bridges in Coastal Environments.
... Mass concrete specifications were obtained for Florida, Texas, South Carolina, Louisiana, Maryland, and ...minimum mass concrete dimension in these specifications ranged from 4 feet to 6 feet, ...
310
Solutions to Improve the Quality of Mass Concrete Construction in Climate Conditions of Southern Vietnam
... Abstract: Concrete is the most commonly used material in construction works, a mixture of sand, stone, cement, water and other substances (if ...the concrete, the cement will create reaction with water, ...
5
Hydration Heat in a Mass Concrete and a Thin Slab with Limestone Blended Cement
... in mass concrete construction ...the concrete structures, some further consideration should be regarded including pre or post cooling of concrete ...the concrete with blended limestone ...
8
An Experimental Study on Thermal Stresses and Effect of Temperature on Thermal Properties of Mass Concrete
... Mass concrete is defined in ACI 207 as “any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from hydration of the cement and ...
8
Developing numerical algorithm and a new program for simulating alkali aggregate reaction in mass concrete
... use concrete as suitable material but its weak points confronted them with new ...in concrete and some kinds of ...of concrete, acts as catalyst in progressing of this ...piers, concrete tanks ...
8
Long-term Study on Properties of High-strength Mass Concrete in PCCV (Prestressed Concrete Containment Vessel) (Monitoring Test Results and Durability of Concrete Over 22 Years)
... The chloride resistivity by protective finish coating is shown in Figs. 5 and 6. Fig. 5 shows the chloride content distribution compared to that in the depth of 135 to 150 mm (hereafter called Reference Zone). The ...
8
Thermal stresses in concrete structures
... rises occur in types of structures like bridge abutments, large concrete girders and retaining walls rather than in mass-concrete dams, because although heat losses are less significant [r] ...
436
Thermal and Mechanical Behaviors of Concrete with Incorporation of Strontium-Based Phase Change Material (PCM)
... of mass concrete, and the study aimed to evaluate the resulting fundamental and thermal properties of mass concrete with ...to concrete with various binder conditions for mitigating the ...
12
Assessment of Containment Reinforced Concrete Structures exposed to the Accidental Flooding by using Abaqus FEA-Software – Solutions and Lessons-Learned
... The evaluation has been based on thermal load input (i.e. heat flux), derived from a computational fluid dynamics (CFD) thermal analysis which analyzed the flooding accident scenario for the whole containment. Figure 5, ...
8
Predicting Nanocrystallites Development in Cement Pastes
... Cement was reinvented at the beginning of the nineteenth century by the Eng- lish bricklayer and businessman Joseph Aspdin who, in 1824, began to manu- facture “Portland” cement, referring to it as artificial stone and ...
14
Effects of heating durations on normal concrete residual properties: compressive strength and mass loss
... normal concrete. Concrete cubes were being heated up to 600°C for 30, 60, 90, 120 and 150 ...residual mass and residual compressive strength were ...of concrete decrease as the heating ...
8
Conductivity and Artificial Neural Networks applied to the evaluation of the apparent mass diffusion coefficient in concrete
... The data used in this work were taken from the experimental database. A restricted of data was dedicated for validation, testing and interpolation of data. So as to describe the kinetics of desorption of aqueous solution ...
6
Degree of Hydration and Mass Balance Equations for Determination of Mix Proportion of Hardened OPC Concrete
... hardened concrete was calculated with consideration the effect of age of sample by taking into account the time-dependent degree of hydration ...for concrete at 14 and 91 days, ...hardened concrete ...
9
Experimental Investigation on Flyash Based Geopolymer Concrete
... the concrete disappears and the concrete assumes a cylindrical ...of concrete to change from slump cone shape to cylindrical shape in seconds, is known as Vee-Bee ...
21
A Review on Strength and Durability Studies on Geopolymer Concrete
... geopolymer concrete under elevated temperature affected by the size of ...geopolymer concrete specimens at elevated ...geopolymer concrete with greater incompatibility led to higher strength loss ...
6
Gamma Ray Shielding and Structural Properties of Bi2O3 B2O3 Na2WO4 Glass System
... barite concrete and bismuth borate glasses at photon energies 662, 1173 and 1332 ...2, mass attenuation coefficient decreases with increase in gamma ray energy from 662 keV to 1332 ...
6
Effect of Fiber Hybridization on Durability Related Properties of Ultra-High Performance Concrete
... self-compacting concrete, was ...the concrete mixes, quantities of steel and polypropylene fibers and types of coarse aggregate are shown in Table ...
11
Manufacturing of Pavement Block by Using Waste Plastic and Sea Sand
... in concrete pavement block is a partial solution to the environmental and ecological challenges associated with the use of ...cement concrete paver ...
8
Influence of Coal Tar Epoxy Paint on Concrete Exposed to Sulfate Exposure
... uncoated concrete sample with Portland cement having C3A content less than 8% but still it has significant effect of Sulfate attack in the ...Uncoated concrete samples with composite cement CEM-II/B-M [10] ...
12