2.2 Preparation of Pavement Concrete. According to Technical Guidelines for Construction of Highway Cement Concrete Pavement (JTG/T F30-2014) and engineering practice, the water cement ratio and sand coarse aggregate ratio are 0.36 and 0.38, and the reference mix proportion is shown in Table 7.In this study, the effects of …
The thermal expansion coefficient of basalt concrete is much lower than that of gneiss concrete. In this study, basalt aggregate concrete presented a ... Sand Basalt 0/5 3.54 1.52 2.8 80 2.82 ...
Binici and Aksogan (2018) and Binici et al. (2020) found that BP and basalt sand make positive contributions to concrete performance when it is substituted for 5% …
to basalt concrete, the residual compressive strength of gneiss concrete increased when temperatures increased from 150 to 300 °C. This study showed the ... (15/25), sand basalt, gravel basalt (5/15) and gravel basalt (15/25), respectively. The absolute density of sand gneiss and sand basalt were 2.87 g/ cm 3 and 2.82 g/cm, respectively, while ...
Despite the fact that basalt rock powder and superfine sand weakened the cement mortar's mechanical properties, it was found that they can be added into the cement mortar as partial replacement ...
This study aims to investigate the macroscopic mechanical properties and mesoscopic damage mechanisms of basalt fibre-reinforced seawater sea-sand slag-based geopolymer concrete (SS-SGC). At the macroscopic level, the influences of different volumes and lengths of basalt fibre (BF) on the workability, compressive strength, and …
Sand, waste bauxite and iron oxide are also sometimes used in small amounts to adjust the composition of the mix. This work aims to investigate the capability to substitute clay by basalt in cement industry. This substitution will facilitate establishing new cement factories near the basalt localities where the clay is not available. 2 ...
C-Crete's basalt-based concrete boasts compressive strength exceeding 5000 psi. It demonstrates pumpability, workability, setting time and surface finish akin to …
Compared with traditional plain shotcrete and steel fiber shotcrete, shotcrete incorporated with basalt fiber can dramatically improve the bending resistance, …
Download scientific diagram | Mixtures for producing fiber-cement boards from publication: Feasibility Study of Using Basalt Fibers as the Reinforcement Phase in Fiber-Cement Products | The aim of ...
Using glass waste instead of some cement helps create a denser structure in basalt fiber UHPC. However, using more than 0.75 % basalt fiber can reduce concrete strength. 13. The microstructure of basalt fiber UHPC can be enhanced through the incorporation of waste glass powder as a cement replacement, evident by the Ca/Si …
In this study, the raw materials included cement, fly ash, water reducing agent, sand, steel fiber, and basalt fiber. The P•II 52.5R Portland cement with a specific surface area of 365.3 m 2 /kg was produced by Conch Co. Ltd., Anhui, China. The Class-F fly ash with a low calcium content was produced in Jiaxing, Zhejiang, China.
The strength of the concrete series based on basalt aggregate, BC1, allowed it to be classified as ultra-high-performance concrete. Concrete based on sand, SC1, was characterized by the …
Four different proportion of basalt partially replacement by cement weight in concrete mix ranging from 0% up to 22.5% were conducted with a water to binder w/(C …
2.1 Materials. Ordinary cement, sand, coarse aggregate, water, and basalt fiber were used in this investigation to prepare PC and BFRC. The cement used is …
Without additives and with the addition of basalt powder, which is a partial sand replacement, the quantity of cement hydration products in the mortar was evaluated based on thermal testing. ... This makes possible to an effective stress transfer through the interface of basalt-cement paste and the exploit of relatively high basalt particles ...
Mix 1 part cement, 1.5 parts sand, and 3 1 / 2 parts aggregate to form concrete. Mix the sand and cement until the desired color is achieved. Use a 0.5 water-to-cement ratio to calculate the water needed. These calculations show that milliliters of cement equal 50% of its kilos [26]. Mix the concrete's components with the trowel after …
First, the vegetated concrete and basalt fibers were mixed. Then samples were directly prepared by the cutting ring. The water content of the samples was 20% and the dry density was 1.45 g/cm 3.
We had a conversation regarding building the Ecoshell I Domes using salt water, beach sand and basalt reinforcing. I explained to him that we were not looking for terribly strong cement or concrete—in most cases, we need only 250 psi concrete. ... Use the salt water and beach sand. Use Portland Cement mixed with 10, 15 or 20 percent …
This is in line with the results of strength tests of concrete with basalt dust additive as a sand replacement, which show that mortar strength increases with the increase in basalt dust content. The basalt dust used in the study features a bimodal grain size distribution with a small maximum around 1 µm in diameter (Figure 3). These very ...
The mortar specimens used in this study were prepared in a mold with a diameter of 50 mm and a height of 25 mm. The mass ratio of water, cement, and fine sand was 0.54:1:1.96, and the apparent density of coral sand cement mortar was 2000 kg/m 3. The actual mass used was 1.2 times that of the calculated value considering the mass …
The test results show that with the increase of the basalt fiber content, the damage degree of the basalt fiber cement solidified aeolian sand under the action of freeze-thaw cycle first decreases ...
To determine the compressive strength (CS) and tensile strength (TS) of basalt fiber reinforced concrete (BFRC), this study will develop empirical models using gene expression programming (GEP ...
In addition, basalt fiber significantly affects the workability of self-compacting concrete. Mazloom et al. [54] and Ponikiewski et al. [55] investigated the effect of basalt fiber on the workability of self-compacting concrete via a V-funnel test and a T 500 flow-time test. They discovered that both the V-funnel time and T 500 flow time increased …
Transports Cement Basalt inert Basalt sand Siliceous sand Limestone filler Acrylic additive for concretes Corresponding file name in SimaPro 7.3.3: "CI_UNIFG_Concrete production" The additive is used in order to ensure that the concrete flows better once casted inside the formwork The initials "CI_UNIFG_" indicate those processes ...
of 3 0% o f silica sand with basalt dust leads to a decrease in co mpression stre ngth co mpared to standard concrete; 4) Substituting silica sand with stone dust does not enhance the compression ...
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This paper discusses an experimental work on concrete made from river and crushed sands such as quartzite, granite, gneiss, marble, dolomite, basalt and limestone with an emphasis on physical, mechanical, and microstructural properties of fresh and hardened concrete.This paper is completed by the formulation of three types of …
These water absorption results are consistent with those found by Meyyapan et al. [44] in which the pore volume of concrete containing manufactured sand and 0.75% basalt fiber was reduced by up to ...
This manuscript proposes a strength and ductility of reinforced concrete (RC) using basalt fibre-reinforced polymers (BFRP). The lightweight materials like fibre-reinforced polymers (FRPs) are providing superior structural performance and durability in reinforced concrete members over traditional materials. Due to its light weight property, …
This study investigates the impact of basalt fiber on the static and dynamic compression of coral-sand cement-based composites, as well as the mechanisms for strengthening and toughening. The samples of basalt fiber-reinforced coral sand cementitious composite (BFRCSCC) with varying fiber volume fractions (0%, 0.2%, …
Abstract. As unlimited resources, seawater and sea sand (SS) could be used as alternatives for fresh water and river sand in concrete constructions in areas with …
This article summarizes the properties of basalt fibre reinforced concrete (BFRC) in terms of its fresh and mechanical …
In recent years, environmental pollution and resource shortages have increased demand for high-performance green concrete. This study investigated the use of manufactured basalt sand as fine aggregate and mineral admixtures as a partial replacement for cement with a focus on the basic mechanical properties of concrete as …
When basalt is used as fine aggregate in sand size, a decrease takes place in the number of capillary cavities in the concrete. In other words, water absorption …